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1. A person's present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?
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By: guest on 01 Jun 2017 05.47 pm
Let the mother's present age be x years. Then, the person's present age = 2 x years. 5 2 x + 8 = 1 (x + 8) 5 2 2(2x + 40) = 5(x + 8) x = 40.