Question
There are 700 students in a college. 60% are boys. Among
the boys and girls, 50% and 45% respectively are interested in dance. Find the number of students who are not interested in dance.Solution
ATQ,
Total number of boys = 700 × 0.6 = 420
Total number of girls = 700 - 420 = 280
So, number of boys who do not like dance = 420 × 0.5 = 210
So, number of girls who do not like dance = 280 × 0.55 = 154
So, required number of students = 210 + 154 = 364
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