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, January 07, 2008

Ai Tong School P5 Math CA1 2006 (Q41)

Gary has thrice as many stamps as Joel. The total number of stamps Gary and Joel have is twice that of Jackson. The three of them have a total of 210 stamps. How many more stamps does Gary have than Joel?


6 units ----- 210

1 unit ----- 210 divided by 6 = 35

2 units ---- 2 x 35 = 70

Answer: Gary has 70 more stamps than Joel.

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