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Question

The number of boys taking Cooking classes is what percent of the total number of children in the school? Round off your answer to two digits after the decimal.

A
9.68%
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B
12.61%
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C
10.71%
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D
8.43%
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E
None of these
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Solution

The correct option is C 10.71%
Number of girls =47×2800=1600
Number of boys =1200
Number of boys in Painting =10205=240
Number of girls in Cooking clases =14×1600=400
Number of boys in Cooking classes =700400=300
Number of boys in Singing classes =25×1200=480
Number of boys in Dancing classes =1200240300480=180
Number of girls in Singing classes =2×480=960
Number of girls in Dancing classes =54×180=255
Number of girls in Painting classes =1600400960225=15
Required per cent =3002800×100=10.71%

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