A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, then how old is B?

A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 38 years now, the son's age five years back was:

Father is aged three times more than his son Ronit. After 8 years, he would be two and a half times of Ronit's age. After further 8 years, how many times would he be of Ronit's age?

Present ages of Sameer and Anand are in the ratio of 5 : 4 respectively. Three years hence, the ratio of their ages will become 11 : 9 respectively. What is Anand's present age in years?

Sachin is younger than Rahul by 7 years. If their ages are in the respective ratio of 7 : 9, how old is Sachin?

The sum of the present ages of a father and his son is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be:

The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?

In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?

How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated?

In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?