• 10/4

  • 19/4

  • 111

  • 105


Sum of ages of mother, daughter and son (i.e., 3 persons) = 87 years. After 8 years , Sum of their ages = Sum of ages of mother, daughter and son + ( 8 x 3 ) = 87 + (8 × 3) = 87 + 24 = 111 years