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Q: .
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  • A. 35 : 61
  • B. 33 : 56
  • C. 37 : 59
  • D. 31 : 56
Correct Answer: Option B - Total number of boys in colleges A, B and C = 400 + 600 + 650 = 1650 Total number of girls in all five colleges = 500 + 500 + 700 + 450 + 650 = 2800 Hence, required ratio = 1650 : 2800 = 33 : 56
B. Total number of boys in colleges A, B and C = 400 + 600 + 650 = 1650 Total number of girls in all five colleges = 500 + 500 + 700 + 450 + 650 = 2800 Hence, required ratio = 1650 : 2800 = 33 : 56

Explanations:

Total number of boys in colleges A, B and C = 400 + 600 + 650 = 1650 Total number of girls in all five colleges = 500 + 500 + 700 + 450 + 650 = 2800 Hence, required ratio = 1650 : 2800 = 33 : 56