The sum of the reciprocals of A’s ages (in years) 2 years ago and 2 years from now is 2/3. The present age of A is

The age of Q exceeds the age of P by 3 years. The age of R is twice the age of P and the age of Q is twice the age of S. Further, the age difference of R and S is 30 years. What is the sum of the age…

The sum of ages of 5 children born at the interval of 4 years each is 55 years, the age of eldest child is :

Father is aged 3 times more than his son after 8 years, he would be two and half times of his son's age. after further 7 years, how many times would he be of his son's age?

Suppose n is an integer such that the sum of the digits of n is 2, and 10¹⁰ <n < 10¹¹, The number of different values for n is

A father is five times as old as his son, but after 15 years, he will remain only twice as old as his son. What is the age of the father?