Question
The number of boys and girls in a college is in the ratio
of 6:5. If 12 boys were absent and 18 girls joined, their numbers would be equal. Determine the original number of girls enrolled in the college.Solution
ATQ,
Let the number of boys and girls be 6n and 5n, respectively.
So, 6n - 12 = 5n + 18
n = 30
Therefore, number of girls = 5 × 30 = 150
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