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Question

The average age of $6$ students is $11$ years. If two more students of age $14$ and $16$ years join their average will become:

A

13

years

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B

12

years

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C

12 \frac{1}{2}

years

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D

11 \frac{1}{2}

years

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Solution

The correct option is A $12$ years
Average = $\frac{6 \times 11 + 14 + 16}{8} = 12$

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