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The average age of 3 children of Arihant...

The average age of 3 children of Arihant singh is 12 years and their ratio of ages is 3:4:5 The average age of the youngest and eldest child is if he had only 3 chidren:

A

12

B

21

C

8

D

9

Text Solution

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The correct Answer is:
A
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