Question
In a college the ratio of boys and girls are in the
ratio 3:5. 40% girls and 20% boys were absent. Find the girls present if the total number of students in a college were 200.Solution
Boy : Girl = 3:5 Total number of students = 200 Number of Boys = (3/8) × 200 = 75 Number of Girls = (5/8) × 200 = 125 Number of girls absent = 40% × 125 = 50 Number of boys absent = 20% × 75 = 15 Total number of girls present = 125 – 50 = 75
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