Question

3 years ago the sum of the ages of a father and a son was 40 years. 2 years hence, the sum of their ages will be…..years.

Answer 1

Answer:

Let present age of father and son be x and y respectively

then 3 years ago sum of then age is 40.

⇒(x−3)+(y−3)=40

x+y=46⇒y=46−x...(1)

After 2 years ; sum of age of father and son is

Let t=(x+2)+(y+2)

t=(x+2+46−x+2) from (1)

=46+4

t=50

So sum of their ages after 2 years = 50.