BANK EPFO SSA Mock Test 2023 Quantitative Aptitude Average

The average age of 3 children of Arihant Singh is 12 years and ratio of their ages is 3 ∶ 4 ∶ 5. What is the average age of the youngest and eldest child, if he had only three children?

1

12

2

21

3

8

4

9

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