# Factorial - examples

- Elements

If the number of elements is decreased by two the number of permutations is decreased 30 times. How many elements are? - Vans

In how many ways can 7 shuttle vans line up at the airport? - Seating

How many ways can 7 people sit on 3 numbered chairs (eg seat reservation on the train)? - Guests

How many ways can 7 guests sit down on 9 seats standing in a row? - Playing cards

How many possible ways are to shuffle 7 playing cards? - Shelf

How many ways are there to arrange 9 books on a shelf? - Elections

In elections candidate 8 political parties. Calculate how many possible ways can the elections finish, if any two parties will not get the same number of votes. - Word

What is the probability that a random word composed of chars T, I, O, D, I will be IDIOT? - Tournament

Determine how many ways can be chosen four representatives from 27 students to school tournament. - Numbers

How many different 4 digit natural numbers in which no digit is repeated, can be composed from digits 0,1,2,3? - Committees

How many different committees of 2 people can be formed from a class of 29 students? - Commitee

A class consists of 5 males and 18 females. How many committees of 4 are possible if the committee must consist of 3 males and 1 females? - Friends in cinema

5 friends went to the cinema. How many possible ways can sit in a row, if one of them wants to sit in the middle and the remaining's place does not matter? - Candy

How many ways can divide 22 identical candies to 4 children? - MATES

In MATES (Small Television tipping) from 35 randomly numbers drawn 5 winning numbers. How many possible combinations there is? - Words

How many 3 letter "words" are possible using 18 letters of the alphabet? a) n - without repetition b) m - with repetition - Olympics

In how many ways can be placed 6 athletes on the podium at the Olympics? Depend on the color of the metal. - Colors

Francisco got birthday 4 colour pens in different colors. How many ways he can give them side by side in pencil? - Cards

How many ways can give away 32 playing cards to 3 player? - Cinema

How many ways can be divided 13 free tickets to the premiere of "Jáchyme throw it in the machine" between 10 pensioners?

Do you have interesting mathematical example that you can't solve it? Enter it and we can try to solve it.