The average age of three boys is 15 years and their ages are in proportion 3:5:7 – OfficerPath

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MCQ Practice

The average age of three boys is 15 years and their ages are in proportion 3:5:7. What is the age in years of the youngest boy?

Subject: MathematicsTopic: Basic Maths

A

15

B

9

C

18

D

21

Correct Answer: B

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