Question

The difference between the ages of two persons is 10 years.15 years ago the eldee one was twice as old as the younger one.The present age of elder person is?

Answer 1

Two persons be A and B respectively

Let age of B be x and age of A be x+10.

15 years ago age of B is x-15 and age of A is x-5.

According to the question:

2(x-15)=x-5

2x-30=x-5

2x-x=30-5

x=25 is age of younger person

x+10 =35 is age of younger person