Question

ram's mother is 4 times as old as her son.in 20 years she will be twice as old as her son.find their present age

Answer 1

at present
age of son = x yr
mother age = 4x yr

after 20 years

age of son = (x+20)yr

mother age = (4x+20) yr
mother age = 2 * son age
4x+20 = 2(x+20)
4x+20 =2x +40

4x-2x = 40-20
2x = 20
x= 20/2
x=10
therefore
at present age of son = x = 10 years
mother age =4x =4 *10 =40 years

Answer 2

present age of mother 40,present age of ram10