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SEAMO 2018 Paper B © TCIMO 1 1 Find the next number in the sequence 5611, 111223, 232447, (A) 232495 (B) 464793 (C) 474895 (D) 474896 (E) None of the above 4 How many cubes are there in the figure bel[.]
QUESTIONS TO 10 ARE WORTH MARKS EACH How many cubes are there in the figure below? Find the next number in the sequence 5611, 111223, 232447, … (A) 232495 (B) 464793 (C) 474895 (D) 474896 (A) 20 (E) None of the above (B) 22 (C) 23 Find perimeter of the figure below (D) 24 (E) 25 In the following additions, each letter represents a different digit (A) 38 11111111 Find -./0 (B) 42 (C) 44 (D) 46 (E) None of the above footballs and basketballs cost $279 footballs and basketballs cost $139 Find the prices of a football and a basketball, respectively (A) 8370 (B) 9464 (A) $35 and $21 (C) 8371 (B) $35 and $23 (D) 9465 (C) $40 and $21 (E) None of the above (D) $40 and $23 (E) None of the above SEAMO 2018 Paper B © TCIMO Pine trees are planted at equal There are 14 children at a party intervals of 16 m along a straight road, If each child shakes hands with each including both ends of the road If the other road is 960 m long, how many pine handshakes will take place? exactly once, how many trees are there altogether? (A) 75 (A) 56 (B) 85 (B) 58 (C) 87 (C) 59 (D) 89 (D) 60 (E) 91 (E) 61 When 925 is divided by 8, the quotient is 35 and the remainder is 15 Find The numbers 1, 2, 3, … , is to be filled in each circle, such that the sum of (A) 23 numbers along each line is Find (B) 25 (C) 26 (D) 27 (E) None of the above 10 There are 15 red, 20 white, 25 black and 40 yellow balls in bag Without looking into the bag, find the least (A) 25 (B) 26 number of balls to be removed, without replacement, to obtain at least balls of different colours (C) 22 (D) 34 (A) 86 (E) None of the above (B) 76 (C) 75 (D) 66 (E) 67 SEAMO 2018 Paper B © TCIMO 13 Teacher Ali has a bag of sweets If he QUESTIONS 11 TO 20 ARE WORTH MARKS EACH 11 Find the missing number in gives each student sweets, he will the be left with sweets If he gives each number puzzle below student sweets, he will be short of sweets How many sweets does Teacher Ali have? (A) 45 (B) 46 (C) 47 (A) (D) 48 (B) (E) None of the above (C) (D) (E) None of the above 14 There is a total of 15 questions in a mathematics test For every correct answer, marks will be awarded For 12 Peter has a total of 100 chickens and every wrong answer, marks are rabbits on his farm If the animals deducted If John scored a total of have 260 legs altogether, how many 72 marks, chickens are there on the farm? answer wrongly? (A) 40 (A) (B) 50 (B) (C) 60 (C) (D) 70 (D) (E) 80 (E) SEAMO 2018 Paper B © TCIMO how questions did he 15 Cindy’s father is times older than 17 The diagram below shows a rectangle her Three years ago, both their ages of length 36 cm It contains two added up to 49 How old are Cindy shaded regions and identical small and her father, respectively, this rectangles Find the area of one small year? rectangle, in cm; (A) 10 and 45 (B) 11 and 44 (C) 12 and 46 (D) 9 and 36 (E) None of the above 16 Mark had some stamps He gave 10 less than half of his stamps of to Shaun Then, he gave more than half the remainder to Cindy Finally, (A) 98 (B) 120 (C) 144 (D) 156 (E) None of the above he gave 30 stamps to his cousin and was left with 40 stamps How many stamps did he have at first? 18 Train - left Town < for Town =, at a speed of 60 km/h 1h later, Train left (A) 284 Town < for Town = , at a speed of (B) 304 75 km/h How many hours did Train (C) 322 take to catch up with Train -? (D) 354 (E) None of the above (A) 2 h 30 min (B) 3 h (C) 3 h 30 min (D) 3 h 45 min (E) 4 h SEAMO 2018 Paper B © TCIMO 19 In the diagram below, the topmost layer has 60 circles How QUESTIONS 21 TO 25 ARE WORTH MARKS EACH many circles are there altogether? 21 A new operation is defined as B⊚D = 5×B−3×D Given that 14 ⊚ D = 13, find the value of D 22 Alan wrote on the whiteboard 1, 2, 3, 4, 5, … , 173 How many times did he write the digit ‘7’ altogether? (A) 1750 (B) 1780 23 Many (C) 1830 years ago, there were Saturdays in the month of February (D) 1880 (E) None of the above On which day of the week was the last day of that year? 20 The diagram shows a square -./0 of side 10 H8 and a shaded rectangle of 24 Jane walked from her house to Peter’s ; area 6 cm What is the area of IJKL? at a speed of 80 m/min At the same time, Peter walked from his house to Jane’s at a speed of 60 m/min They met 15 m from the mid-point of the two houses How far is Jane’s house from Peter’s? (A) 49 cm; (B) 51 cm; (C) 62 cm; (D) 53 cm; (E) 58 cm; SEAMO 2018 Paper B © TCIMO 25 In the diagram below, -./0 is a square of side 4 cm 0IJK is rectangle I-J is a straight a line Given that /K = 3 cm and 0K = 5 cm , find the length of 0I in cm End of Paper SEAMO 2018 Paper B © TCIMO SEAMO 2018 Paper B – Answers Multiple-Choice Questions Questions to 10 carry marks each Q1 C Q2 D Q3 B Q4 B Q5 C Q6 E Q7 A Q8 E Q9 C Q10 A Questions 11 to 20 carry marks each Q11 A Q12 D Q13 D Q14 C Q15 B Q16 A Q17 C Q18 E Q19 C Q20 D Free-Response Questions Questions 21 to 25 carry marks each © SEAMO 2018 21 22 23 24 25 19 31 THURSDAY 210 m 3.2 cm Paper B