Question

Ten years later A will be twice as old as B and five years ago A was three times as old as B.what is the present age of B?​

Answer 1

I hope it will help you!

Answer 2

Step-by-step explanation:

Let the ages of A and B be x and y years.

According to first condition

x+10=2(y+10)

x+10=2y+20

x-2y=10...(1)

From second condition

x-5=3(y-5)

x-5=3y-15

x-3y=-10...(2)

eq(1)-eq(2)

y=20

Sunstitute y=20 in eq(1)

x-2(20)=10

x-40=10

x=10+40=50

The ages of A and B are 50 and 20 years respectively.