Question

4 yrs ago, the ratio of the ages of A and B was 2:3band after 4yrs it becomes 5:7 . Find their present ages.​

Answer 1

Answer:

4 Years ago

a/b =2/3

a=(2/3) b

4 yrs later means a+8,b+8

a+8 /b+8 =5/7

by cross multiplication

solve above two equations for a and b we get

a=32

b=48

so their present ages are

a+4=36

b+4=52

hence

A,s resent age =36

B,s present age =52