from a pool of 12 candidates in how many ways can we select president, vice-president, secretary and a treasurer if each of the 12 candidates can hold any office?

A mathematical club consists of 18 members. In how many Wars can the members select a president, a vice president, a secretary and a treasurer if a member can hold only one position at a time.

A class consists of 40 girls and 60 boys. In how many ways can a president, vice president, treasurer and secretary be chosen i th treasurer must be a girl, the secretary must be a boy and a student may not hold more than one office?

A class consists of 40 girls and 60 boys. In how many ways can a president, vice president, treasurer and secretary be chosen i th treasurer must be a girl, the secretary must be a boy and a student may not hold more than one office?

A class consists of 40 girls and 60 boys. In how many ways can a president, vice president, treasurer and secretary be chosen if the treasurer must be girl, the secretary must be a boy and a student may not hold more than one office.

A class consists of 40 girls and 60 boys. In how many ways can a president, vice president, treasurer and secretary be chosen if the treasurer must be a girl, the secretary must be a boy and a student may not hold more than one office ?

There are 6 candidates for 3 posts. In how many ways can the posts be filled?

In how many different ways can a club with 10 members selected a President, Secretary and Treasurer if no member can hold two offices and each member is eligible for any office?