Question : If the average of $s$ numbers is $r^4$ and the average of $r$ numbers is $s^4$, then find the average of all $r+s$ numbers.
Option 1: $r s\left(r^2+s^2-r s\right)$
Option 2: $rs$
Option 3: ${r}^2+s^2$
Option 4: $rs\left(r^2+s^2\right)$
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile