Question
In a college, the proportion of boys to girls is 7:9,
and the proportion of graduate students to postgraduate students is 4:5. Determine the total number of students, given that the difference between the number of boys and graduate students is 2.Solution
ATQ, Let the total students = 'x' ATQ, x Ă (4/9) - x Ă (7/16) = 2 (64x â 63x)/144 = 2 x = 288
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