Question
The current ages of A and B have a ratio of 7:9. Twelve
years from now, B will be 12 years older than A. What will be the ratio of their ages in six years?Solution
Let present ages of A and B be '7x' and '9x' years, respectively. According to question, 9x - 7x = 12 2x = 12 x = 6 So, present ages of A and B is 42 years and 54 years, respectively. Desired ratio = (42 + 6) :(54 + 6) = 48:60 = 4:5 Hence, option a
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