Riya got married 6 years ago, today her age is 1\(\frac{1}{4}\) times of her age at the time of her marriage. Her son's age is \(\frac{1}{10}\) times of her age, what is present age of son?

3 years 

          Present   :   Marriage time

Riya :      5       :           4                 .......(i)

Riya :     10      :           8                 ........(ii)       ((i) × 2)

            Riya     :      Riya's son

Age :     10       :           1                  ..........(iii)

⇒ According to (ii) & (iii)

         Riya       Riya marriage        son

Age:   10     :          8              :      1   

ATQ,

⇒ 2R → 6 years

⇒ 1R → 3 years

⇒ Present age of son = 1 × 3 = 3 years