#59 Average Quantitative Aptitude Question

The average of five numbers is 27. If one number is excluded, the average becomes 25. The excluded number is 

A. 25
B. 27
C. 30
D. 35

Ans: D.Sol.
Therefore excluded number 
= (27 × 5) - ( 25 × 4) 
= 135 – 100 
= 35.