1.

4 years ago, the ratio of ages of A and B was 2:3 and after 4 years it became 5:7. Find their present age.Pls answer​

Answer»

SOLUTION:-

GIVEN

four years ago the ratio of Ages of A and B was 2:3

After 4 years it become 5:7

To find

Their present age

EXPLANATION

Let their ages before 4 years a, b

RESPECTIVELY,

Four years ago

a/b= 2/3

a= (2/3)b

4 years LATER means a+8, b+8

a+8/b+8= 5/7

7a+56= 5b+40

By SOLVING

a= 32

b= 48

So their present ages are

a+4= 36

b+4=52

Thus, Present age of A = 36 years

Present age of B is 52 years



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