If 2 pens are drawn at random what is the probability that one is black and one is red ?
How many words can be formed with the letter of the word ‘FUTURE’ if repetition is not allowed?
A football team of 11 players is to be formed from 20 players including 5 defenders and 4 goal keepers. In how many different ways can a team be formed ...
If 3 pens are drawn at random what is the probability that all are black?
How many 10 digit numbers can be formed using the digits 1, 2, 0, 2, 4, 1, 2, 4, 2, 4 ?
