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Primary 6 PSLE Mathematics Data Analysis Quiz
Free P6 PSLE Maths Data Analysis quiz, Ox Exam version, with questions, answers, and PSLE-focused practice for Singapore students.
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Primary 6 PSLE Mathematics Quiz - Data Analysis
Answer Key (Total: 60 marks)
Answer 1.
Sum = 4 + 7 + 9 + 12 = 32 Average = 32 ÷ 4 = 8
Answer 2.
Sum = 5 × 14 = 70
Answer 3.
Original sum = 6 × 9 = 54 New sum = 5 × 8 = 40 Number removed = 54 − 40 = 14
Answer 4.
Total = 3 × 20 = 60 Third number = 60 − (15 + 22) = 60 − 37 = 23
Answer 5.
Total height = 4 × 130 = 520 cm
Answer 6.
Total = 72 + 85 + 68 + 79 = 304 Average = 304 ÷ 4 = 76 marks
Answer 7.
Original total = 8 × 12 = 96 kg New total = 9 × 13 = 117 kg Mass of new bag = 117 − 96 = 21 kg
Answer 8.
Original total age = 5 × 34 = 170 years New total age = 6 × 35 = 210 years New teacher's age = 210 − 170 = 40 years
Answer 9.
Total distance = 36 + 50 = 86 km Total time = 3 + 2 = 5 h Average speed = 86 ÷ 5 = 17.2 km/h
Answer 10.
Total of 7 numbers = 7 × 19 = 133 Total of 6 known numbers = 11 + 13 + 17 + 21 + 23 + 25 = 110 Seventh number = 133 − 110 = 23
Answer 11.
The largest value in the table is 30, on Wednesday. Answer: Wednesday
Answer 12.
Total = 24 + 18 + 30 + 27 + 21 = 120 Average = 120 ÷ 5 = 24 books per day
Answer 13.
Total pupils = 40 + 30 + 25 + 20 = 115 (a) Fraction = 25/115 = 5/23 (b) Ratio = 40 : 20 = 2 : 1
Answer 14.
(i) Bicycle = 90/360 × 240 = 60 pupils (ii) Bus = 120/360 × 240 = 80; Walk = 60/360 × 240 = 40 Difference = 80 − 40 = 40 pupils
Answer 15.
Highest = 33°C (1 p.m.); Lowest = 24°C (7 a.m.) Difference = 33 − 24 = 9°C
Answer 16.
Total of 5 numbers = 5 × 28 = 140 Total of first 2 = 2 × 22 = 44 Total of remaining 3 = 140 − 44 = 96 Average = 96 ÷ 3 = 32
Answer 17.
Total for 6 months = 6 × 19,200 Total for first 4 months = 4 × 12,000 Total for last 2 months = 12,000 = 7,200 ÷ 2 = $3,600
Answer 18.
Total mass of Group A = 12 × 40 = 480 kg Total mass of Group B = 8 × 45 = 360 kg Combined average = (480 + 360) ÷ 20 = 840 ÷ 20 = 42 kg
Answer 19.
(a) Total needed = 3 × 70 = 210 Test 3 score = 210 − (64 + 78) = 210 − 142 = 68 (b) Total needed for 4 tests = 4 × 72 = 288 Test 4 score = 288 − 210 = 78
Answer 20.
Total of 10 numbers = 10 × 48 = 480 Remaining total = 480 − (30 + 42) = 480 − 72 = 408 New average = 408 ÷ 8 = 51
— End of Answer Key —