Question
A is 9 years older than B and B is 12 years younger than
C. If the sum of the ages of A, B and C is 30 years, then what is B’s age after 12 years?Solution
=> A – B = 9 => C – B = 12 A + B + C = 30 According to question, => 9 + B + B + 12 + B = 30 => 3B = 9 => B = 3 years After 12 years B’s age = 3 + 12 = 15 years
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