the average age of the 30 woman decreases by 3 month if a new person priyanka

Question

the average age of the 30 woman decreases by 3 month if a new person priyanka is included in place of 25 yr old woman. calculate the age of priyanka

Options:

A . 12.5 yr

B . 15 yr

C . 17.5 yr

D . 20 yr

Answer: Option C
Explanation :

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