Q. What is the ratio of the average to the sum of numbers in series S?
1) Sum of the numbers is 50
2) There are 10 numbers in the series
Please explain your answer.
Ans is B.
The normal equation is for sum/average/ etc... is written
Sum/# of terms= Average --> S/#=A. Since we are looking for A/S just rework the equation.
S1: Tells us the Sum, but we can't determine the ratio of A/S here.
S2: gives us 1/10=A/S