PSLE Math 2019 Paper 2 Question 7

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(Class 6A Bar Graph Question)

PSLE Math 2019 Paper 2 Question 7

(a) Ans: 100%

Percentage increase = increase/original × 100%
% increase (Jan to Feb) → 10u/10u × 100%
= 100%

(b) Ans: 110

Average (Jan to April) → 75
Total (Jan to April) → 75 × 4 = 300
10u + 20u + 22u + 8u = 300
60u = 300
1u = 300 ÷ 60
= 5
(April) 22u = 22 × 5 = 110