The present age of Vinay's mother is three times the present age of Vinay. After 5 years, sum of their ages will be 70 years. Find their present ages.

10 years 30 years

15 years 45 years

20 years 60 years

18 years 54 years

Let Vinay’s present age be x

Then, his mother’s present age = 3x

After 5 years,

Vinay’s age = x + 5

Vinay's mother’s age = 3x + 5

Sum of Vinay and Vinay's Mother's age after 5 years = 70

⇒x + 5 + 3x + 5 = 70

⇒ 4x+10 = 70

⇒4 x = 60

⇒ x = 15

⇒ 3x45

∴Vinay’s age is 15 years and his

mother’s age is 45 years