The permutation calculator below will help you find the number of permutations.
Use it only when the order of things is important.
Example of permutation
A club has 20 members
The members want to elect a president and a vice-president to be in charge of the club
Here order does matter since being the president of the club is more important than being the vice-president.
To find out how many different ways you can elect a president and then a vice-president, use the permutation calculator above
Just type in the box 20 , 2
20 means number of people in the club
2 means number of people in charge
Jul 20, 17 10:41 PM
A water tank is emptied at a constant rate. Initially, 36,000 gallons of water were in the tank. A the end of five hours, 16,000 gallons remained. How
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