Question
The ages of A, B and C are in the ratio 6:8:9 and the
sum of their ages is 69. Find the ratio of 9 years ago B’s age to C’s age after 9 years.Solution
Let the present age of A, B and C be 6x, 8x and 9x respectively. According to the question, => A + B + C = 69 => 6x + 8x + 9x = 69 => x = 3 B’s age 9 years ago = 8x – 9 = 24 – 9 = 15 C’s age after 9 years = 9x + 9 = 27 + 9 = 36 Required ratio = 15 : 36 = 5:12
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