Question
The total strength of school A is 20% more than that of
school B. In school A and B, out of total number of students, 15% and 40% respectively are girls. The number of boys in school A is how much percent more/less than that in school B?Solution
Let the total number of students in school B be ‘x’. Therefore, total number of students in school A = 1.2x Number of boys in school A = 0.75 × 1.2x = 1.02x Number of boys in school B = 0.6x Required % = [(1.02x – 0.6x)/0.6x] × 100 = 70%
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57, 59, 56, 61, 54, ___
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