Question

the ages of Ram and his mother are in ratio 1:4 if after 20 years the sum of their ages will be 100 years find their present ages

Answer 1

Let ram's age be x

Therefore mother's age is 4x

After 20 years ram's age will be x+20 and mother's age will be 4x+20

Given

X+20+4x+20=100

5x+40=100

5x=60

X=12

Therefore ram's age is 12

Mothers age is 4x=48years

Answer 2

Let the age of ram be x and the age of his mother be 4x

Then, after 20 years

Age of ram=x+20

Age of mother= 4x+20

So,

x+20+4x+20=100

5x= 60

x=12

.: age of ram is 12 yrs and the age of his mother is 48 yes