Question
In a class, the number of boys is 50% more than the
number of girls. If the total number of students is 450 and 80% of the boys are present on a particular day, find the number of boys present.Solution
ATQ, Let number of girls in the class be 'x' So, number of boys in the class = x × 1.5 = '1.5x' ATQ: x + 1.5x = 450 ⇒ 2.5x = 450 ⇒ x = 180 So, number of boys = 180 × 1.5 = 270 Number of boys present = 270 × 0.8 = 216
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