Virtual Reality 3 Explanations

1. D Since the veteran boxer won most of his bouts by knockouts, you can assume that he was pretty successful. Unb r oken is the only choice that describes his series of wins in a way that suggests success; an unb r oken series of victories would be a winning streak with no losses. (A) and (B) are both contradicted by the rest of the sentence. Choice (C) able-bodied may seem to fit in a sentence about a boxer, but what’s an able-bodied series of wins? This choice sounds odd when you plug it in. Only (D) makes sense. 2. E Sitting still for hours and remaining alert to the slightest sound or motion amounts to having (E) limitless patience and keen powers of obse r vation . Powers of (A) persuasion, (C) reasoning, or (D) trust have nothing to do with the description of bird watching given. In (B), powers of concentration are certainly required but it doesn’t make sense to speak of patience as skilled. 3. B One of the main things with Sentence Completions is to look for context clues— words and ideas in the sentence that strongly suggest the answer you’re looking for. Here, the first major clue in the sentence is the word “everyday.” You know you’re looking for a word with a similar meaning for the first blank. In the second blank, you need something to describe what the everyday objects were transformed into, a word to contrast with “everyday.” That takes you to (B). Mundane is almost a synonym for “everyday.” The second word in (B), r esplendent , or extraordinary, is a good contrast, and fits when plugged into the sentence: Weston’s camera transformed mundane things into objects of r esplendent beauty. (C) and (E) can be eliminated because their first words don’t work. Everyday things like vegetables are not always small or artificial . In (A), inexpensive might seem to fit with the idea of “e v e r yd a y items such as vegetables.” But (A)’s second word, tawdry, or cheap and gaudy, makes no sense. In (D), you might imagine that vegetables can be decorative, but (D)’s second word functional doesn’t provide the contrast we’re looking for. 4. B Here, you know that the issues “go far beyond” the immediate controversy referred to in the sentence. So you can predict they have “implications” or “consequences” beyond the matter presently under discussion. The best match for this prediction is (B) ramifications. Ramifications are resulting developments or consequences. (C) proponents are advocates or supporters. (D) inferences are conclusions. 5. D The phrase “even accepting” in the second part of the sentence implies that Chamberlain’s approach to German aggression was not a particularly tough or militant one, especially since he tolerated Germany’s annexation of Austria. Therefore, it’s likely that Chamberlain adopted a non-aggressive, accepting approach to Hitler. The choice that comes closest to this prediction is (D) conciliato r y , meaning “tending to pacify or accommodate.” Choice (B) precarious means “uncertain or dangerous,” and choice (C) haughty means “arrogant, snobby, huffy.” section one Section 1 (V erbal) SAT Virtual Reality III 1 section one 6. C Although we don’t know what kind of performance Redgrave gave, we can infer that it was either good or bad. If it was good, we can predict people who were lucky enough to see the performance say it was the height of his career. Basically, we want two positive words if Redgrave did a good job, or two negative words if he bombed. The only choice showing this relationship is (C): those fortunate enough to witness Redgrave’s performance say it was the pinnacle, or height, of his career. (A) scourge means “something that annoys or destroys.” (B) astute means shrewd or perceptive. (D) hapless means “unlucky.” (E) nadir means “the lowest point.” 7. C This woman relieves her after-work exhaustion by walking along the beach. Thus the implied adjective in the first blank, describing the sea air, will reinforce this idea. In the second blank, we need a synonym for “relieve.’’ Thus (C): the bracing, or invigorating, sea air always manages to alleviate her fatigue. The other choices make no sense. The sea air might be (A) humid, (B) salty, (D) damp, or (E) chilly , but those qualities wouldn’t hasten, exacerbate (worsen), r epr ove (scold), or aggravate the woman’s exhaustion. 8. A The word in the blank will describe terms which refer indirectly to some thing or idea. The right answer is (A) — euphemisms are polite, inoffensive or less explicit terms which are used to name an unpleasant, frightening or offensive reality. "Passed away" is an example of a euphemism. You say “passed away” instead of “died.” (B) banalities are things that are commonplace or worn-out. (D) apostrophes are marks used to indicate the omission of one or more letters in a word, as in the word “can’t.” (E) eulogies are formal speeches of praise. At a funeral, speakers might deliver eulogies about the person that died. 9. E A good vocabulary will help you figure out this one. The bookkeepers altered some financial records and completely fabricated others, so you need a word like “altered,” “falsified,” or “fake” for the blank. (E) spurious means “false, lacking authenticity,” so it’s a good match. 10. D LEMONADE is a type of BEVERAGE just as a magazine is a type of periodical . 11. C The related prefixes CO-, COL-, and COM- mean “with” or “together.” COLLABORATE contains the prefix CO- and the root LABOR, so it means “to WORK together.” The word habit has come a long way from its root, HABIT, over the centuries, but the original root meaning is still visible in such words as inhabit, habitat, and habitation. In those words, HABIT means “to live or reside.” So cohabit means “to live together,” and (C) is correct. In (D), SYN-, like CO-, means “with” or “together”; CHRON- means “time.” So synchronize means “to make happen at the same time.” When one watch is synchronized with another, it displays the same time as the other watch. But watch in choice (D) isn’t a noun, it’s a verb. Always “watch” the parts of speech in an analogy to make sure you understand what meaning of a word is intended. SAT Virtual Reality III 2 12. E In questions where the vocabulary is easy it is very important to state the connection between the stem words absolutely precisely. In this case an APRON section one is worn to protect one’s CLOTHES. Once this is clear, answer choice (E) jumps out as correct: a helmet is worn to protect the head. The other answer choices, even those with strong bridges, can be eliminated easily: (A) is strong—a parasol is used to protect against the sun—but that bridge is inappropriate. (B) is moderately strong: gloves are sometimes worn to protect against the cold; since this bridge is identical to that in (A), both answer choices would have to be eliminated because only one answer can have the same bridge as the stem words. (C) and (D) have totally different bridges—so (E) is the correct answer. 13. B Answer choice (B) is correct. A PULPIT is a platform on which a PREACHER stands in church when addressing the congregation. In (B), the podium is a raised platform where the conductor stands. Choice (A) has a strong bridge — every teacher has a student—but it is not the one which we need here. Choices (C), (D) and (E) can be eliminated because they have weak bridges: an artist , if he or she is a painter, may use a canvas (C) but the connection is not a really strong one; (D) and (E) are even weaker. In (D) a gallery is a balcony in a theater. 14. A Here’s a tougher stem pair, but, as always, there is a strong bridge: The word ADULATION is a very strong kind of PRAISE. In the same way, with (A), loathing is a very strong kind of dislike. (B) doesn’t work because disdain and contempt mean practically the same thing. The stem pair involves one word that’s an extreme form of the other. Scholarship is not an extreme kind of eloquence (C). Sympathy is not an extreme kind of emotion (D). And pleasure is not an extreme form of hedonism. If you had trouble, you might have tried eliminating choices—(C) and (D) both seem like weak bridges (words with unclear relationships)—and then guessing. 15. B An ANALGESIC is used to relieve PAIN. Likewise, an emollient is used to relieve d r yness . There were a lot of “doctor” words here—especially in choices (D) and (E). You might have spotted them as SST’s (same subject temptations), especially since this was supposed to be a tough question. On tough questions, the ones at the end of the set, the “obvious” answer is usually wrong. In (A), a purgative is a medicine that purges or cleans you out, like mineral oil. But a purgative doesn’t produce purity, exactly. In (C) a humidifier provides moisture, not ventilation (air circulation). Leisure Time Passage This is a not-too-difficult social science passage, which only has a few big ideas. If you felt confused at any point, it would’ve been worthwhile to check the questions. They clarify things and are fairly straightforward. Your first reading should’ve given you these ideas: Paragraph 1 says that people have less free time now than they used to, because people are choosing to work overtime to be able to afford expensive leisure-time activities. Paragraph 2 says that although people have less free time during the week, on weekends they feel compelled to participate in strenuous, skill-testing activities. Paragraph 3 explains that this is because technology has removed “craft” from most professions, so people try to prove their competency by mastering demanding leisure activities. SAT Virtual Reality III 3 section one 16. C Go back and read a few lines around the quoted line to see the context in which “skiing and sailing” are mentioned. The author’s point is that if you want to go skiing or sailing in your free time, unless you are rich, you’ll have to spend some of that “free time” working to be able to afford those expensive pastimes. That makes (C) correct. The point is not that expensive sports are “inaccessible” for the average person (A), but that they require a sacrifice of time. The author is not commenting on the cost of sports like skiing and sailing (D), or whether they are “unnecessarily expensive” (B). (E) is out because the author is not giving out advice about what type of recreation to choose. 17. B Don’t over-interpret the passage with a question like this one—the answer is fairly straightforward. For example, choices (C), (D), and (E) give way too much information for what is found in the text. The author simply says that either because advertising is very effective, or because people just want to own stuff, they choose to work more hours. So the “effectiveness of advertising” is one possible reason why people spend so much on recreation (B). Choice (A) sounds much too extreme--the author never “condemns” the average consumer for anything. 18. B After reading a line or two around the word “indulgences,” it should be clear that the author uses that word to refer to items like “elaborate running shoes” and “monogrammed warm-up suits.” These clearly are not (E) favors. There’s nothing in the context to support the idea that they are (A) rewards; they certainly are not expenses (D), and while (C) whims comes close, (B) luxuries is the better answer. 19. D The author’s point in lines 38-43 is that until recently, many leisure activities could only be pursued once a year. The example of taking swimwear out of mothballs illustrates this point ironically — people swam so infrequently, they had to put their swimwear in long-term storage (D). Choice (A) is wrong because the author expresses no particular opinion about annual vacations today. “Household chores” (B) is a distortion of the idea of “digging equipment out and dusting it off.” (C) is out because despair is too strong a word — watch our for these kinds of wrong choices — and because taking out swimwear hardly fits the description of a “traditional custom.” Finally, there was no “lack of enthusiasm for swimming” in the past — it was just enjoyed in a different way than it is now. 20. A The “casual attitude” is described at the end of paragraph 2. It is the emphasis on “having a good time” during recreation, rather than focusing on “technique.” You’ll save time by scanning the answer choices before going back to the passage. (C) and (D) jump out as wrong, because they’re never discussed. (E) is also off-base; people never had “a resistance towards buying sports equipment.” You can scan paragraph 1 to be sure, but there was never a restriction on working overtime, so (B) is out. That leaves (A), which may not seem like a very precise answer, but by process of elimination, it has to be correct. Remember not to argue with what you’re given—choose the best answer, and move on. SAT Virtual Reality III 4 21. B Scan the end of paragraph 3 to identify “the author’s conclusion.” That’s where the author argues that people “work at recreation” because technology has taken the craft out of their jobs. Now check the choices. (B) should jump out as correct— describing the skills that people employ in their leisure time would support the idea that people are doing “meaningful work” on the weekends. Information about jobs that still require a level of expertise (A) would weaken the author’s point. Information section one about (C) and (D) woudn’t affect the author’s conclusion — these choices refer to earlier points. Choice (E) may have been tempting — but information about technologies in the workplace would not support the author’s conclusion as directly as information about the skills now involved in leisure activities — choice (B). Frederick Douglass Passage SAT Virtual Reality III 5 The introduction tells you that this is an excerpt from an autobiography. Your first read-through should’ve given you a general idea of the main points: Douglass learned to read and write through his own resourcefulness; he was influenced greatly by two specific pieces of writing; and the more he read, the more tormented he became by his conviction that having freedom was rightfully his. 22. C Remember that with “primary focus” questions you need to find a choice that covers the main points of the passage, without being too broad or too narrow. In this case, (A) is much too narrow. Douglass mentions that he made friends with some White boys only to let the reader know how he learned to read. How learning to read influenced his ideas about slavery (C) is the primary focus of the passage, because that’s the idea everything in the passage relates to. (D) is an example of an overly broad choice. It blows up the two books that influenced Douglass into “literature,” and the discussion of slavery into “civil rights movements.” It doesn’t mention Douglass, reading, or slavery at all. If you have trouble with a primary focus question, you can either: do the other questions first, which might clarify the main idea for you; or eliminate any too-broad or too-narrow choices and guess. 23. E Don’t be put off by the vocabulary in this (or any) question stem. Use the information you’re given—the line reference—to figure it out. What does Douglass say about his mistress in paragraph 1? Simply that she started to teach him to read and write, but then (influenced by her husband) stopped, and wouldn’t let anyone else teach him either. That’s what correct choice (E) says. If you were confused by the word “absolutely” in this choice (since she had started to teach him), you should eliminate the rest of the choices, which should then lead you back to (E). (A) is wrong because we found in paragraph 1 that Douglass’s mistress finally took her husband’s advice—not that she “persisted in ignoring it.” (B) is wrong because there is no mention of Douglass’s opposition to slavery in paragraph 1—if you chose (B) you’re inferring too much. The same goes for choices (C) and (D). 24. E Read a few lines after the line you’re referred to. Douglass says he made friends with some White boys, and that “with their help, [he] finally succeeded in learning to read.” Learning to read was the goal of his plan, and choice (E) is correct. Douglass never mentions that he even thought of trying to persuade his mistress to continue teaching him, so (A) is out. If you chose (B), (C) or (D), you’re inferring too much. Again, keep the main idea in mind, and remember some questions are straightforward. 25. D In a question where you’re dealing with an analogy, you don’t want to be too literal. In the lines you’re referred to, Douglass describes how he gave bread to hungry boys in exchange for lessons—“the bread of knowledge.” Since he says this kind of section one “bread” is “more valuable” than actual food, it must’ve been very important to him, as (D) has it. If you chose (B), you’re focusing too much on details and losing sight of the main points. (E) distorts a small fact (the availability of bread) into an improbable inference. (C) takes the word “valuable” to mean financially valuable, but Douglass means knowledge is valuable in other ways. 26. C This is another question where you need to make an inference, but be sure that your answer is based on the lines that you’re referred to. First, Douglass says it would not injure him to give the names of the boys who taught him to read, so you can eliminate (D) and (E). Instead, he points out that it might embarrass the boys because it was considered an “offense” to teach slaves to read. It is a short leap from this information to correct choice (C). There’s no evidence for the inference (A) makes, and nothing in the passage mentions Douglass being “advised” about whom to associate with (B). 27. B “Bear” has a number of different definitions, so you must go back to the context to figure out the answer. You should do this with all vocabulary-in-context questions. (B) makes the most sense. (D) might’ve tempted you, since Douglass is “suffering” at the thought of being a slave for life. But it’s the situation that implies suffering, not the word “bear.” 28. C When Douglass discusses Sheridan’s speech he says that “I read [it] over and over,” and that what he got from it was “a bold denunciation of slavery and a powerful vindication of human rights.” You should realize from this tone—before you go to the answer choices—that you need a positive-sounding answer. From the first words in the answer choices, you can quickly eliminate (B) “disappointment” and (E) “skepticism.” At this point you’ve eliminated enough choices to guess, if you happen to be running out of time. If not, read the rest of the choices. (A), “interest,” is probably the least likely; Douglass was really psyched about Sheridan’s ideas, not merely “interested” in them. (C) has a strong enough first word, “enthusiasm,” and the rest of the choice proves it’s correct: what was Douglass so enthusiastic about? Sheridan’s views of slavery, of course. That relates to the main idea of the passage, which you should keep in mind when you answer any question. 29. D This question’s a little harder than most, so if you had trouble with it, you should’ve come back to it, or eliminated choices and guessed. Remember, all questions are worth the same, so don’t lose time on any single one. In this case, a good approach is to figure out the point of the paragraph, and then find an answer that makes sense. What’s Douglass’s main point there? He says that the more he read, the more he realized that slavery was a large-scale form of robbery, which increased his outrage. So Douglass describes slaveowners as “robbers” to emphasize that as his knowledge increased, so did his anger (D). (A) is tricky. The description of slaveowners as “robbers” may indicate that Douglass’s misconceptions about the legitimacy of slavery had been dispelled, but it’s not Douglass’s goal here to do that for others. (B) and (C) don’t make much sense in this context. (E) is wrong because it’s not Douglass’s goal to prove his master’s predictions. SAT Virtual Reality III 6 30. D Read the lines you’re referred to, and a line or two more, to understand the context where the phrase “eternal wakefulness” is used. Douglass says that he “saw” and “heard” freedom everywhere—that the idea of freedom tormented him, since he was section one supposed to be a slave for life. “Eternal wakefulness” refers to the way his soul had been affected by the idea of freedom. Now check the choices to see which one fits with these ideas. (D) matches, and is the right answer. (A) is out because Douglass knows all too well the causes of his unhappiness. (B) is wrong because it’s too positive—it doesn’t capture the “torment” Douglass discusses. (C) might be the next step he takes, but he doesn’t mention his “plans” for freedom in this excerpt. Finally, Douglass says nothing about “researching his African origins” anywhere in the passage. SAT Virtual Reality III 7 section two Section 2 (Math) 1. A We’ve got a lot of food and we’re making some skimpy sandwiches with only one slice of ham and one slice of cheese in each one. If there are 75 slices of ham and 75 slices of cheese, then we should be able to make 75 sandwiches, right? One slice of ham and one slice of cheese in each sandwich, and 75 slices of both ham and cheese seems to indicate 75 sandwiches. Certainly you can’t make more than 75 sandwiches, so choices (D) and (E) can be eliminated. The question is: Is there enough bread to make 75 sandwiches? There are 120 slices of bread, and each sandwich gets 2 slices of bread, so there is enough bread for only 60 sandwiches. So the caterer can only make 60 sandwiches. The correct answer is (A). 2. B This is a fairly straightforward algebra question. If you had trouble with it, you probably need to do some review in your Math Reference Book. To solve, simply plug the given values for x and y into the equation. You should write down each step, otherwise it is easy to make a careless error. You’re given the expression x 2 + 2xy + y 2 . Since x is 1 and y is –1, this expression becomes x 2 + 2xy + y 2 = (1) 2 + 2(1)(–1) + (–1) 2 = 1 + (2)(–1) + 1 = 1 + (–2) + 1 = 1 – 2 + 1 = 0 Be careful here with the operations involving negative numbers. Remember that when you square –1, or any other negative number, you get a positive number, and that adding a negative number is the same as subtracting a positive number. There’s a shortcut here that you may have noticed. The expression x 2 + 2xy + y 2 is equivalent to (x + y ) 2 . Since x + y = 1 + (–1) = 1 – 1 = 0, (x + y) 2 is also equal to 0. 3. C This is a translation problem, so you have to take the words a few at a time and find the equivalent equation. Let’s start with the words “12 less than.” What if you were asked “What is 12 less than 20?”. That’s easy, right? 12 less than 20 is just 20 minus 12. So 12 less than the product of something is going to look like something minus 12. The next part of the phrase is “the product of 3 and b.” You should know that a product is the result of multiplying two numbers together. So the product of 3 and b is just 3 times b, or 3b. Therefore 12 less than the product of 3 and b is just 12 less than 3b, or 3b – 12. The next word is “is,” which means equals, so we have “3b – 12 = .” What does it equal? 9, of course, so the entire equation is 3b – 12 = 9, choice (C). You might have been tempted by choice (A), which is similar, but notice that in (A) the 12 is being subtracted from b, not from the product of anything. SAT Virtual Reality III 8 4. C If you look at the drawing, and think about how gears work, you’ll see that the teeth of each gear pushes the gear next to it to make it go around. Let’s call the gears A, B, C, etc. from left to right. If gear A is turned clockwise, then its teeth will push the teeth on the left side of gear B down. This will make gear B turn counterclockwise. Since gear B is turning counterclockwise, the teeth will be moving up when they are , section two on the right side, touching gear C. That will push the teeth on the left side of gear C up, and make gear C turn clockwise. Do you see the pattern now? This will make D turn counterclockwise, E turn clockwise, and finally F turn counterclockwise. Since A, C, and E will turn clockwise and B, D, and F will turn counterclockwise, 3 gears will turn counterclockwise, choice (C). 5 & 6. Whenever you have a graph question, it’s a good idea to spend at least a few seconds examining the graph before you begin. Here you have what looks like part of a pie chart and a bar graph, both describing the employees at Company X. From the note under the title you know that there are 800 employees, and from the notes under the graph you know that 75% of them work full-time and 25% of them work part-time. Notice that the full-time employees are represented by the bar graph, which gives the number of full-time employees in each department, whereas the part-time employees are represented by the pie chart, which gives the numbers of part-time employees as a percentage of the total number of employees. 5. D You already know from your examination of the graphs that 75% of the employees work full-time, 25% work part-time, and that there are 800 employees in all. That means that there are 75% × 800 = 600 full-time employees and 25% × 800 = 200 part-time employees. Since 600 is 400 more than 200, the number of full-timers is 400 more than the number of part-timers, and the correct answer is (D). You could also have done this by finding the difference of the percents first. Since 75% are full-time and 25% are part-time, the difference between them is just 75 – 25% = 50%, since they are percents of the same whole. 50% of 800 is 400, again choice (D). 6. A Now you have to figure out what percent of the employees work in the manufacturing department. What makes this hard is that there are 2 kinds of employees — part-time and full-time — and 2 kinds of graphs that represent them. You’ll have to figure out the number of part-timers in manufacturing and the number of full-timers in manufacturing separately, then add those 2 amounts together, and then figure out what percent of the total that number represents. First, the number of full-time employees in manufacturing. That’s easy — you can just read that off the bar graph, which tells you that there are 240 full-time employees in manufacturing. Now for the part-timers. The pie wedge that says “manufacturing” also says “10%.” But 10% of what? Be careful here — it’s not 10% of the total number of part-timers; it’s 10% of the total number of workers, or 10% of 800, which is 80. So there are 80 part-timers and 240 full-timers in manufacturing, for a total of 320 workers in manufacturing. Since there are 800 workers total, the percent is just SAT Virtual Reality III 9 320 , or 800 40 100 , or 40%, answer choice (A). 7. B Maurice starts out with $80. He spends $32.45 on clothes, so after he buys the clothes he has $80 – $32.45 = $47.55 left. Then he gives $27.55 to his sister so he has $47.55 – $27.55 = $20 left. We’re trying to find what fraction of the original $80 he still has, or what fraction of $80 the $20 he has left is. That fraction is just 20 80 or 1 , choice (B). 4 section two 8. E In this question you don’t have to solve for x, so if you did a lot of work, solved for x, and then plugged one or both of the values back into the expression 2x 2 – 8x, you did a lot of unnecessary work. If you’re given an algebra problem where you’re not solving for the value of one variable, you should always look carefully at the expression you’re solving for. Can you see any similarities between the expression you’re solving for and the information you’re given? In this problem, you should have noticed that 2x 2 – 8x looks very similar to x 2 – 4x. In fact, 2x 2 – 8x = 2(x 2 – 4x). So, if x 2 – 4x – 12 = 0, then x 2 – 4x = 12, and 2x 2 – 8x = 2(x 2 – 4x) = 2(12) or 24, answer choice (E). 9. E Don’t be scared by the term ”factor-rich.” It’s just a made-up expression that is defined by concepts that you already know about. The question stem tells you that all it means for a number to be factor-rich is that when you add up all the factors of the number except for the number itself, that sum is greater than the number. All you have to do is go through the answer choices and add up the factors of each one except for the number itself. The factors of 6 are 1, 2, 3, and 6; adding all of them except 6 gives us 1 + 2 + 3 = 6. The result is not greater than 6, so 6 is not factor- rich. For choice (B) we add 1 + 2 + 4 = 7, which is not greater than 8. Choice (C) is 9, so we add 1 + 3 = 4. No good. The factors of 10 are 1, 2, 5, and 10, and 1 + 2 + 5 = 8, so 10 is not factor-rich either. Since we’re left with only one answer choice, (E), it must be correct, but just to check add up 1 + 2 + 3 + 4 + 6 = 16, which is indeed greater than 12 so choice (E) is correct. 10. D In this question you have 2 parallel lines, £ 1 and £ 2 , and 2 lines which cross both of them, £ 3 and £ 4 . Let’s forget about £ 3 for a minute, and look what happens where £ 4 crosses £ 1 and £ 2 . Since £ 4 is perpendicular to £ 2 , all the angles that are formed where those 2 lines cross are right angles. And, since £ 1 is parallel to £ 2 , the angles that are formed where £ 4 and £ 1 meet are also right angles. That means that £ 1 and £ 4 must also be perpendicular to each other, which means that statement I is true. That means we can eliminate answer choices (B) and (E). £ 3 also crosses the two parallel lines and together with £ 4 creates a triangle in between them. Since all the angles formed where £ 2 and £ 4 meet are right angles, the triangle is a right triangle. One of the other angles of the triangle measures a˚, but what about the third angle of the triangle? Well, that angle is formed by the same lines that form the angle labeled b˚, so that angle inside the triangle must also measure b˚. Since the 3 angles inside the triangle measure a˚, b˚ and 90˚, and the sum of the angles in a triangle is always 180˚, a + b + 90 = 180, which means that a + b = 90, so statement III is true. Now we can eliminate answer choices (A) and (C), and since choice (D) is the only one left, it must be correct. SAT Virtual Reality III 10 Notice that we didn’t even have to deal with statement II once we figured out that statements I and III were true. This often happens in Roman Numeral questions. Just for the record, though, statement II is not necessarily true. We know that a + b = 90, so if a = b then a and b are each 45. However, although that’s how a and b look in the figure, there’s no information there that would indicate that. b could just as easily be a 46˚, a 43˚, or a 50˚ angle, so statement II is false. [...]... term, in other words s = r + x and t = s + x Combining those 2 equations SAT Virtual Reality III 16 r+s+t gives you t = (r + x) + x = r + 2x The average of r, s and t is 3 Substituting 3 r+s+t r + (r + x) + (r + 2x) 3r + 3x r + x for s and r + 2x for t gives you 3 = 33 3 3 = 3 = 3 3 3( r + x) 3 = r + x, answer choice (A) 3 Section 3 (Verbal) 1 D This is about the philosopher Thomas Malthus’s predictions... and 0, why not pick an appropriate number 1 for y and plug it into each answer choice? Try y = 3 Then choice (A) is 2 1 y2= 3 2 1 1 1 1 1 4 2 2 2 2 ( ) = 3 ; (B) is 1 – y = 1 – (– 3 ) = 1 3 ; (C) is 1 + y = 1 + (– 3 ) = 3 ; (D) is 2 1 2y = 2 – 3 = 2 1 ( ) = –1; and (E) is y3 +2 1  1 − +2  2 = 1 2 = 3 3 3 2 Choice (B) is the greatest 17 C A good way to solve this question is by making yourself a... 10, y = 4, and z = 3 Then Column A is xyz = 10 × 4 × 3 = 120 while Column B is xy + yz + xz = 10 × 4 + 4 × 3 + 10 × 3 = 40 + 12 + 30 = 82 In this case Column A is greater Now let’s let each of x, y, and z be negative Let x = –1, y = –2, and z = 3 Then in Column A, xyz = (–1) × (–2) × ( 3) = 2 × ( 3) = –6 In Column B, xy + yz +xz = (–1) × (–2) + (–2) × ( 3) + (–1) × ( 3) = 2 + 6 + 3 = 11 In this case... so subtract 30 from 45, leaving 15 7 A Don’t be fooled by this question If Sola received raffle tickets numbered 132 4 to 137 2 inclusive, you cannot just subtract 132 4 from 137 2 to find out how many tickets she was given Instead, after subtracting you must add 1: 137 2 − 132 4 = 48 48 + 1 = 49 SAT Virtual Reality III 32 Sola received 49 tickets Now, since each ticket cost $1 and Sola raised $36 , it means... = 3( –1) – 1? 2 = 3( 1) – 1? 8 = (3) (3) – 1? 14 = 3( 5) – 1? Yes Yes Yes Yes Since all the pairs work for choice (D), that’s the answer Just for practice, look at (E) Plugging in the first pair of values gives you –4 = 3( –1) + 1 Is this true? No, because 3( –1) + 1 = –2 9 D The best way to do this problem is to find N and take 15% of it To do this, set up the following equation: 6% of N = 30 06N = 30 30 ... Sola raised $36 , it means she sold 36 tickets To find out how many she returned unsold, subtract 36 from 49 The answer is 13, choice (A) SAT Virtual Reality III 33 8 D The fastest way to do this problem is to plug the values of C and D listed in the chart into each of the answer choices Start with choice (A) Plugging in –1 and –4 works, as –4 = –1 3, but does 2 = 1 – 3? No, so move on to the next one... numbers must be less than 73 and 3 numbers must be greater than 73 67, 71, and 72, the temperatures for Monday, Tuesday, and Wednesday, respectively, are each less than 73 The other 3 temperatures must be greater than 73 The Friday temperature is 76, and among the answer choices the only values for Saturday and Sunday which are both greater than 73 are 74 and 77, choice (E) 23 D This question is a lot... – b = 5 That means that b is 3 Plugging b = 3 into the first equation gives you 3a = 6 which means that a = 2 Now you know that a is 2, b is 3, and c is 8, so a + b + c = 2 + 3 + 8 = 13, so grid that in 17 87.5 If 50 out of 400 seniors are majoring in economics then 400 – 50 or 35 0 seniors are NOT majoring in economics Since PERCENT × WHOLE = PART, then PART PERCENT = H 35 0 is the part and 400 is the... –2 + 3 = 1 and 7 – 3 = 4 You aren’t told which point goes where, but only one answer choice, (D), contains one of these values 5 B First find out how much money Tariq’s purchase will cost 21 oranges at 30 cents each will cost 21 × $0 .30 = $6 .30 12 apples at 50 cents each will cost 12 × $0.50 = $6.00 The total purchase would cost $6 .30 + $6.00, or $12 .30 Since Tariq only has $10, he needs $12 .30 – $10.00,... which 3 or more stereos were sold? Since a month has at most 31 days, if 2 or less stereos were sold each day of the month, then at most only 62 stereos would have been sold in that month In order for 63 stereos to be sold, there has to be at least one day where 3 or more stereos were sold, so choice (E) is correct 3 If the slope of a line is – 3 , that means every time the y-coordinate decreases by 3, . Substituting 3 r + x for s and r + 2x for t gives you r + s + t 3 = 3 r + (r + x) + (r + 2x) 33 3 = 3 3r + 3x 3 = 3 3(r + x) 3 3 = r + x, answer choice (A). SAT Virtual. – 3 ) = 3 ; (B) is 1 – y = 1 – ( – 3 ) = 1 3 ; (C) is 1 + y = 1 + ( – 3 ) = 3 ; (D) is 2 4 2 2 2 2 1 1 1 1 2 2y = 2 ( – 3 ) = –1; and (E) is 3 =   = 3