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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.
  1. 9.68%
  2. 12.61%
  3. 10.71%
  4. 8.43%
  5. None of these


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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