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Question

Please assist 

Source: Anglo-Chinese School Primary

Answer

Art Club has 10 more boys than Science Club but only 5 more pupils. Hence, Art Club has 5 less girls than Science Club. 

No. of girls in Science Club = 5 x 4 = 20

20 / (20 + 10) = 66.7%

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Art Club :

boys : 20
girls : 3u

Science Club :

boys : 10
girls : 4u

20 + 3u ——– 10 + 4u + 5
1u ——- 5
4u ——- 20
[20/(10 + 20)] x 100% = 66.7% (correct to 1 d.p.)

Ans : 66.7% (correct to 1 d.p.)

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