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Applying Average in Everyday Life

Average age o...

Question

Average age of people in room A and room B is 35 and 30 years, respectively. If the overall average age of people in both the rooms is 31 years, and there are 3 more people in room B than in room A, how many people are there in room B?

A

2

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B

1

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C

4

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D

6

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Solution

The correct option is C 4

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