This blog is managed by Song Hock Chye, author of Improve Your Thinking Skills in Maths (P1-P3 series), which is published and distributed by EPH.

Monday, April 07, 2008

Ai Tong School P5 SA1 2006 Math (Q40)

Pei Chai and Jia Liang shared a box of cards in the ratio of 4 : 1. After Pei Chai gave Jia Liang 45 of his cards, they had the same number of cards. How many cards did Jia Liang have at first?


3 units ----- 45
1 unit ----- 45 divided by 3 = 15
(Jia Liang at first) 2 units ----- 15 x 2 = 30

Answer: Jia Liang had 30 cards at first.

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