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?
Solution 
6 units ----- 210
1 unit ----- 210 divided by 6 = 35
2 units ---- 2 x 35 = 70
Answer: Gary has 70 more stamps than Joel.
Monday, January 07, 2008
Ai Tong School P5 Math CA1 2006 (Q41)
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