The average age of 4 men is 60. if the difference in age between oldest 3 men is 5 years each, and the youngest man is 15 years younger than the 3rd oldest man, how old is the youngest man ?

The average age of three boys is 16 years. If their ages are in the ratio 4:5:7, then the age of youngest boy is

The average age of 6 brothers is 15 years. The age of the youngest brother is 5 years. What was the average age (in years) of the group of brothers at the time of birth of the youngest brother?

The difference between the ages of two cousins is 10 years. 15 years ago, if the elder one was twice as old as the younger one, find their present ages.

The average age of three boys is 25 years and their ages are in the ratio 3:5:7 . The age of the youngest boy is :

The average age of three boys is 15yr . If the ratio of their ages is 3:5:7 , what is the age of the oldest boy ?

The average age of P,Q, R and S is 30 years. How old is R ? (i) The sum of ages of P and R is 60 years (ii) S is 10 years younger than R.

The difference between the ages of two persons is 10 years. 15 years ago the elder one was twice as old as the younger one. The present age of the elder person is