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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-
Answer & Solution
Correct Answer:
Option
B
Sum of m numbers = mn2
Sum of n numbers = nm2
∴ Average of (m + n) numbers
= $$\frac{mn(m + n)}{(m + n)}$$
= mn
Sum of n numbers = nm2
∴ Average of (m + n) numbers
= $$\frac{mn(m + n)}{(m + n)}$$
= mn
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