There are 8 vacant chairs in a room. In how many ways can 5 persons take their seats?

How many numbers between 3000 and 4000 can be formed with the digits 1, 2, 3, 4, 5, 6?

There are 8 vacant chairs in a room. In how many ways can 5 persons take their seats?

How many numbers between 3000 and 4000 can be formed with the digits 1, 2, 3, 4, 5, 6?

Are you need Live help? Chat with us for quick help.