Question
Ratio of present ages of A and B is 5:7, respectively. C
who is 3 years older than A will become 30 years older after 12 years. Find the present age of B.Solution
Let, present ages of A and B be ‘5x’ years and ‘7x’ years respectively. So, 5x + 7 = 30 – 12 5x = 15 x = 3 Present age of B = 7x = 21 years
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