Question
The present age ratio of A to B is 8:5. Five years ago,
the ratio of their ages was 7:4. If C is 10 years older than B, then find the present age of C.Solution
ATQ, Let, the present age of A and B be 8x years and 5x years. (8x - 5)/(5x - 5) = 7/4 4(8x - 5) = 7(5x - 5) 32x - 20 = 35x - 35 35x - 32x = 35 - 20 3x = 15 x = 5 The present age of A = 8 * 5 = 40 years The present age of B = 5 * 5 = 25 years C is 10 years older than B The present age of C = 25 + 10 = 35 years
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