Question
The total strength of school A is 40% more than that of
school B. In school A and B, out of total number of students, 10% and 30% 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 = 1.4x Number of boys in school A = 0.90 × 1.4x = 1.26x Number of boys in school B = 0.7x Required % = [(1.26x – 0.7x)/0.7x] × 100 = 80%
40.02% of 1220.05 = ?2 + 29.09 × 7.99
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