The difference between the age of the two persons is 6 years. Twelve years ago, the elder was thrice as old as the younger one. The present age of the elder

The difference between the age of the two persons is 6 years. Twelve years ago, the elder was thrice as old as the younger one. The present age of the elder

A 16

B 10

C 21

D 13

Solution

Correct Answer: Option C

First condition:

E-Y=6 ------(1)

Second condition:

E-12=3(Y-12)

=> E-3Y=-24--------(2)

Solved (1) and (2)

Y=30/2=15

E=15+6=21

E=21