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Question 31
Average of 11 numbers is 7. If every number is doubled, then what will be the new average of the numbers?
Solution
Average of 11 numbers = 7
=> Sum of 11 numbers = $$7\times11=77$$
If each number is doubled, then new sum = $$77\times2=154$$
$$\therefore$$ New average = $$\frac{154}{11}=14$$
=> Ans - (D)
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