Question
Rishav's current age is 25% more than Sourav's current
age. In 8 years, the ratio of their ages will be 5:6. What will be Rishav's age 10 years from now?Solution
Let the present age of Sourav is x years. Therefore, present age of Rishav is x + 0.25x = 1.25x years According to the question, (x + 8): (1.25x + 8) = 5:6 Or, 6x + 48 = 6.25x + 40 Or, 0.25x = 8 Or, x = 32 years Therefore, present age of Rishav = 1.25x = 1.25 × 32 = 40 years Age of Rishav after 10 years = 40 + 10 = 50 years
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