Question
Avni’s present age is 4 times of Pooja’s
age. The sum of the present ages of Avni, Pooja and Avni’s brother is 178 yrs. Avni’s brother’s present age is 11/9 that of Avni. What is the difference between Pooja’s present and Avni’s brother’s present age?Solution
Let Avni’s age be x yrs. x + 11/9 x + x/4 = 178 89/36 x = 178 x = 72 yrs. Pooja’s present age = 72/4 = 18 yrs Avni’s brother’s present age = 72 × 11/9 = 88 yrs ∴ Required difference = 88 – 18 = 70 yrs.
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