In how many ways word (ORGANISE) can be organized such that all vowels and consonants come together? 

A number (N) is chosen from (A) where A is set comprising of [–4, –3, 2, –9, 10, 12, 13]. What is probability that |N| < 10. 

In how many different ways can the letter of the word ‘FLEECED’ be arranged? 

Out of 5 men and 3 women, a committee of 3 members is to be formed so that it has 1 women and 2 men. Find the number of ways in which it can be done? 

In how many ways 8 persons can sit around a circle such that a group of 3 friends always sits together? 

How many words can be formed from the letters of the word SIGNATURE so that vowels always come together? 

If three balls are picked at random, what is the probability that at least one is red?

If four balls are picked at random, what is the probability that two are green and two are blue? 

A bag contains 2 Red, 3 Green and 2 Blue ball. 2 balls are to be drawn randomly. What is the probability that the balls drawn contain no blue ball? 

In how many ways a committee consisting of 5 men and 6 women can be formed from 8 men and 10 women?

In how many different ways letter of word ‘BANKING’ can be arranged?

A bag contains 4 blue balls, 3 red balls and 5 grey balls. If two balls are drawn at random, what is the probability that both of them are of same colour.

In how many different ways can the letters of the word DAYNAMIC be arranged so that all that vowel never comes together?

An unbiased coin is tossed 4 times. Find the probability that tail will appear exactly twice.

A six face die, an eight face die and ten face die are thrown together. What is the probable number of outcomes if all the faces of three dice are different.