In how many ways can three persons, each throwing a single dice once, make a sum of 15?

In how many ways can four people, each throwing a dice once, make a sum of 6?

In how many ways can 6 persons stand in a queue?

In how many ways can 6 boys form a ring ?

In how many ways can a person post 5 letters in 4 letters boxes ?

In how many ways can 24 persons be seated round a table, if there are 13 seats?

In how many ways can 6 men be seated at a round table ?

In how many ways can 17 persons depart from railway station in 2 cars and 3 autos, given that 2 particular persons depart by the same car (4 persons can sit in a car and 3 persons can sit in an auto)? a. (15 !)/(2!4!(3!)^3) b. (16 !)/((2!)^2 4!(3!)^3) c. (17 !)/(2!4!(3!)^3) d. (15 !)/(4!(3!)^3)

In how many ways can a person contribute to a charitable fund out of 1 ten - rupee , 1 five - rupee , 1 two - rupee and 1 one - rupee notes ?

In how many ways can the results of the three football matches be predicted?

In how many ways three letters a,b,c can be arranged without repetition ?