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1. The sum of ages of 5 children born at intervals of 3 years each is 50 years. What is the age of the youngest child?
- A. None of these
- B. None of these
- C. None of these
- D. None of these
Answer: Option A
Explanation:
Let,
The age of the youngest child = x year
The age of the 2nd children = ( x + 3) year
The age of the 3rd children = ( x + 3 + 3) year
Tne age of the 4th children = ( x + 6 + 3) year
The age of the 5th children = ( x + 9 + 3) year
According to question,
x + x + 3 + x + 6 + x + 9 + x + 12 = 50
5x + 30 = 50
5x = 50 - 30
5x = 20
x = 4
So, the age of the youngest child is 4 years.
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