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A lady wants to select one cotton saree and one polyster saree from a textile shop. If there are 15 cotton and 13 polyster varieties in that shop, in how many ways can she pick up two sarees?
In a class, there are 30 boys and 18 girls. The teacher wants to select one boy and one girl to represent the class for quiz competition. In how many ways can the teacher make this selection?
How many numbers are there between 100 and 1000, in which all the digits are distinct?
How many three digit odd numbers can be formed by using the digits 1,2,3,4,5,6 if the repetition of digit is not allowed:
A class is composed 2 brothers and 6 other boys. In how many ways can all the boys be seated at the round table so that the 2 brothers are not seated besides each other?
The number of different ways in which a man can invite one or more of his 6 friends to dinner is?
How many number of four digits can be formed with the digits 1,2,3,4,5 if the digit can be repeated in any number of times?
There are 7 chairs in a row. In how many ways can 3 persons occupy any three of them
How many 4 digit numbers are there, when a digit may be repeated any number of times?
How many three digit odd numbers can be formed by using the digits 5,6,7,8 of the repetition of digits is allowed?
157 videos210 docs132 tests

157 videos210 docs132 tests
