In a meeting there are 10 ladies and 15 gentlemen . A sub - committee consisting of 3 ladies and 5 gentlemen is to be formed . In how many different ways , the sub -committee can be formed ?

In how many ways can a committee of a 3 ladies and 4 gentlemen be appointed from a meeting consisting of 8 ladies and 7 gentlemen ? What will be the number of ways if Mrs . X refuses to serve in a committee if Mr . Y is a member

A committee of 5 is to be formed from six ladies and four gentlemen . In how many ways this can be done so that the committee contains exactly two ladies ,

A committee of 5 is to be formed from six ladies and four gentlemen . In how many ways this can be done so that the committee contains at most two ladies ?

A committee of 5 is to be formed from six ladies and four gentlemen . In how many ways this can be done so that the committee contains at least two ladies,

A man has 7 relatives ,4 of them are ladies and 3 are gentlemen , his wife has also 7 relatives , 3 of them are ladies and 4 are gentlemen . In how many ways can they invite a dinner party of 3 ladies and 3 gentlemen so that there are 3 of the man 's relative and 3 of the wife 's relative ?

If none of the digits 2,4,5,7,8,0 be repeated , how many different numbers of 4 digits can be formed with them ?

Seven relatives of a man comprises four ladies and three gentlemen: his wife has also seven relatives-three of them are ladies and four gentlemen. In how many ways fan they invite 3 ladies and 3 gentlemen at a dinner party so that there are three man's relatives and three wife's relatives?

In how many different ways can the four subjects be arranged in 5 periods of a class ?

If none of the digits 3,5,7,8,9 be repeated , how many different numbers greater than 7000 can be formed with them ?

A committee of 7 has to be formed from 9 boys and 4 girls .In how many can this be done when the committee consists of at least 3 girls