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What is the permutation of 5?
Permutations are the different arrangements of any number of objects. When we arrange some objects in different orders, we obtain different permutations.Therefore, you can't say "What is the permutation of 5?". To calculate permutations, one has to get the following details:The total number of objects (n) (necessary)The number of objects taken at a time (r) (necessary)Any special conditions mentioned in the question (optional).
The number of permutations of 5 things taken 2 at a time is 20?
Not quite. Number of combinations is 20, number of permutations is 10. Any 2 from 5 is 10 but in any order doubles this.
How many ways can you arrange 7CDs on a shelf?
The number of permutations of 7 things taken 7 at a time is 7 factorial, or 5040.
How many combination codes is there using 4 5 6 7?
To calculate the number of combination codes using the numbers 4, 5, 6, and 7, we use the formula for permutations of a set of objects. Since there are 4 numbers to choose from and we are using all of them, the formula for permutations of n objects taken all at a time is n! (n factorial). Therefore, the number of combination codes using 4, 5, 6, and 7 would be 4! = 4 x 3 x 2 x 1 = 24.
What is the number of ways to arrange 3 objects from a set of 8 different objects?
How many different ways can we arrange 9 objects taken 3 at a time?
