gmat quant topic 1 (general arithmetic) solutions
gmat quant topic 1 (general arithmetic) solutions
... 4G (10 ) 12 C = 8G Substituting the value of F from equation (7) into equation (4) gives us: (11 ) (3G + 3C) + C = 18 7 (12 ) 3G + 4C = 18 7 (13 ) 9G + 12 C = 5 61 Substituting equation (10 ) into (13 ) ... House in Hampton s TOTAL S House in Palm Beach 18 0 (1/ 2)T – 18 0 (1/ 2)T No House in Palm Beach (2/3)T – 18 0 18 0 – (1/ 6)T (1/ 2)T TOTAL S (2/3)T (1/ 3)T T The r...
Ngày tải lên: 14/05/2014, 16:55
gmat quant topic 2 statistics solutions
... that greater than median is (15 *15 -10 4)/7 =17 .3> ;16 .5. It's true. II. According the analysis above, the price could be, 13 , 13 , 13 , 13 , 13 ,13 ,13 ,13 , 17 .3, 17 .3, 17 .3 So, II is false. III. ... Coin B Coin C Sum 0 0 0 0 1 0 0 1 0 1 0 1 0 0 1 1 1 1 0 2 1 0 1 2 0 1 1 2 1 1 1 3 Now compute the average (mean) of the sums using one of the follo...
Ngày tải lên: 14/05/2014, 16:55
gmat quant topic 3 (inequalities + absolute value) solutions
... for x and see what happens: If x = -10 0 then: y = | -10 0 – 3| – | -10 0 + 3| y = 10 3 – 97 = 6 If x = -10 1 then: y = | -10 1 – 3| – | -10 1 + 3| y = 10 4 – 98 = 6 We see that the two expressions ... the question by manipulating it algebraically: (| x -1 * y -1 |) -1 > xy ( |1/ x * 1/ y |) -1 > xy ( |1/ xy |) -1 > xy 1 / ( |1/ ( xy) |) >...
Ngày tải lên: 14/05/2014, 16:55
gmat quant topic 4 - numbers solutions
... progression S=(A1+An*q )/ (1- q)=-2+2^9 2+S=2^9 8. T= 1/ 2 -1/ 2^2 +1/ 2^3 1/ 2 ^10 = 1/ 4 +1/ 4^2 +1/ 4^3 +1/ 4^4 +1/ 4^5 Notice that 1/ 4^2 +1/ 4^3 +1/ 4^4 +1/ 4^5 < 1/ 4, we can say that 1/ 4<T< ;1/ 2. Answer is ... b 2 (15 + 1) 2 225 2 (15 )1 =30 1 2 (15 + 2) 2 225 2 (15 )2 =60 2 2 (15 + 3) 2 225 2 (15 )3 =90 3 2 . . . . . . . . . . . . (15 + 15 ) 2 225 2 (15...
Ngày tải lên: 14/05/2014, 16:55
gmat quant topic 5 - geometry solutions
... hypotenuse be x, then the length of the leg is x/root2. x+2x/root2 =16 +16 *root2 x+root*x =16 +16 *root2 So, x =16 Topic 3: Quadrilaterals 1. (1) INSUFFICIENT: The diagonals of a parallelogram bisect one ... we know nothing about BD. (1) AND (2) SUFFICIENT: If BD = 6, and DC = 6, then BC = 12 , and the area of ΔABC = 1/ 2(bh) = 1/ 2 (12 )(6 ) = 36 . The correct answer is C 11 ....
Ngày tải lên: 14/05/2014, 16:55
gmat quant topic 6 co-ordinate geometry solutions
... of -1. (A) (8 – 9) ÷ (5 – 4) = -1/ 1 = -1. (B) ( -1 – (-2)) ÷ (3 – 4) = 1/ ( -1) = -1. (C) (6 – 9) ÷ ( -1 – (-4)) = -3/3 = -1. (D) (5 – 2) ÷ (2 – (-3)) = 3/5. (E) (1 – 2) ÷ (7 – 6) = -1/ 1 = -1. The ... (A) ( -14 , 10 ) y = -5/7( -14 ) + 5 = 15 ; this does not match the given y-coordinate. (B) (-7, 5) y = -5/7(-7) + 5 = 10 ; this does not match the given y-coordinate. (C) (12 , -...
Ngày tải lên: 14/05/2014, 16:55
gmat quant topic 8 - probability solutions
... D. 38. 41/ 50 39. 1/ 2 21 40. 1/ 1770 41. 2/9 42. 1/ 216 43. 3/25 44. $3.6 45. 7/8 46. 9 /10 47. 14 3 /15 2 48. 13 /14 49. 13 /18 50. 0 51. 1/ 5 52. 2 71/ 1000 53. 7/ 216 54. 2/25 55. ½ 56. 8/25 57. 1/ 24 58. ... Combinations 2 1 35 1 × 35 = 35 3 2 33 2 × 33 = 66 4 3 30 3 × 30 = 90 5 4 26 4 × 26 = 10 4 6 5 21 5 × 21 = 10 5 7 6 15 6 × 15 = 90 8 5 10 5 × 10 = 50 9 4...
Ngày tải lên: 14/05/2014, 16:55
gmat quant topic 9 - miscellaneous solutions
... possibilities: 1 × 77, 7 × 11 , 11 × 7, 77 × 1. Clicks Awarded Albs Captured Ticks Awarded Berks Captured 1 3, 4 or 5 77 308, 309, 310 , or 311 7 21, 22, or 23 11 44, 45, 46 or 47 11 33, 34, or ... substitution: 61 = 2 r + b ( 61 – 2 r ) = b 15 1 = 5 r + b 15 1 = 5 r + ( 61 – 2 r ) 15 1 = 3 r + 61 90 = 3 r r = 30 Substituting back in, we can find b : 61 = 2 r +...
Ngày tải lên: 14/05/2014, 16:55
gmat quant topic 7 - p and c sol
... 4!/2! 5. 10 P 2 + 10 P 3 6. ( 10 P 8 + 10 P 9 + 10 P 10 ) × 12 seconds 7. 6! – 5! × 2! 8. 7 C 4 9. 12 C 9 10 . 2 C 1 × 3 C 1 × ( 7 C 4 – 5 C 2 ) 11 . ( 5 C 3 – 3 C 1 ) × 3! 12 . (4! ... 3! 12 . (4! / 2!) × 2! 13 . 7 C 3 14 . 7 P 3 15 . 5! / 2! 16 . 4 P 3 17 . 4 × 4 = 16 18 . Another version: 2 × 5 C 4 × 2 = 20 19 . (3 ! × 2 ! × 3 !) × 3 ! 20. 3 ! ×...
Ngày tải lên: 14/05/2014, 16:55
ESSAY OUTLINE ( FOR IELTS ) TOPIC 1
... prevent and fight youth drug abuse? – 202 exercises 12 4. Drug, cuc(5) english-net_com.htm \ \comprehensive site\task1-task2.htm; 10 1 hints166. Why teenagers use more drug? - Teenagers are ... ESSAY OUTLINE ( FOR IELTS ) 1. Crime –violence –smoking Section 1 : Smoking 1. Why people smoke? - Relax when to be nervous. - Like the taste. ... countries. Discuss some possible re...
Ngày tải lên: 08/11/2013, 01:15