Mean of 10 numbers is 30. Later on it was observed that numbers 15, 23 are wrong

Question

Mean of 10 numbers is 30. Later on it was observed that numbers 15, 23 are wrongly taken as 51, 32. The correct mean is :

Options:

A . 25.5

B . 32

C . 30

D . 34.5

Answer: Option A

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