Question
Among 1080 students in an institute, the ratio of boys to
girls is 6:3. If 10% of boys and 20% of girls failed their exams, calculate the number of failed students.Solution
ATQ,
Number of boys = (6/9) × 1080 = 720
Number of girls = (3/9) × 1080 = 360
Required number of students = 0.10 × 720 + 0.20 × 360 = 72 + 72 = 144
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