# If the average of m numbers is n2 and that of…

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### If the average of m numbers is n2 and that of n numbers is m2 , then the average of (m + n) numbers is-

1. A. m – n
2. B. mn
3. C. m + n
4. D. $$\frac{m}{n}$$

Answer: Option B

Here is complete explanation of If the average of m numbers is n2 and that of….

### Solution(By ExamCraze Team)

Sum of m numbers = mn2
Sum of n numbers = nm2
∴ Average of (m + n) numbers
= $$frac{mn(m + n)}{(m + n)}$$
= mn