### The average of 50 numbers is 38. If the numbers 45 and 55 are discarded, then the average of the remaining numbers is-

A. 39.9°C B. 40.9°C C. 41.3°C D. 42.1°C Answer: Option C

### Solution(By Apex Team)

$\begin{array}{l}\text{ Required average }\\ =\left[\Large\frac{(40\times7)-(39\times4)}{3}\right]^{\circ}\mathrm{C}\\ =\left(\Large\frac{124}{3}\right)^{\circ}\mathrm{C}\\ =41.3^{\circ}\mathrm{C}\end{array}$

A. 20
B. 21
C. 28
D. 32

A. 18
B. 20
C. 24
D. 30

A. 10 years
B. 10.5 years
C. 11 years
D. 12 years