1. | The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child? |
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Answer: Option A Explanation: Let the ages of children be x, (x + 3), (x + 6), (x + 9) and (x + 12) years. Then, x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 50 5x = 20 x = 4. Age of the youngest child = x = 4 years. |