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In how many ways can 17 members be seated in two lines with seating capacity of 9 and 8 members respectively?
1. 9! ×8!
2. �...
A man has 15 friends out of which 7 are his relatives. In how many ways can he invite his 9 friends in which at least 5 must be his relatives?
A bag contains 4 violet, 2 grey and 6 black pullovers. 3 pullovers are chosen at random. What is the probability that at least 2 pullovers chosen will b...
How many different 10-letter words (with or without meaning) can be formed using all the letters of the word "TEMPTATION"?
A total of 24 points are given on a plane, out of which 10 are collinear. How many distinct straight lines can be formed using these points?
Find the number of words that can be formed by using all letters of the word 'ESCAPE', if it starts with letter C and end with letter P.
In an election, a voter can vote for any number of candidates not exceeding the number to be elected. There are 7 candidates and 4 members to be elected...
There are two types of animals in a pet shop. Some are puppies and some are kittens. Each kitten takes 8 biscuits and each puppy takes 11 biscuits. If 5...
In how many different ways can the letters of the word QUANTITY be arranged so that the vowels always come together?
In how many different ways can the letters of the word “INCORPORATION” be arranged so that the vowels comes together?