Question
There are 1000 students in a school. The boys to girls
ratio is 4:6. If 7 out of every 10 boys pass, and 6 out of every 9 girls pass, find the total number of students who cleared the exam.Solution
ATQ,
Number of boys = (4/10) × 1000 = 400
Number of girls = (6/10) × 1000 = 600
Required number of students = (7/10) × 400 + (6/9) × 600 = 280 + 400 = 680
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