Find the number of permutations of 10 objects, taken 4 at a time.

To find: the number of permutations of 10 objects, taken 4 at a time.


Formula Used:


Total number of ways in which n objects can be arranged in r places (Such that no object is replaced) is given by,


nPr


10P4


10P410


10P45040


Hence, the number of permutations of 10 objects, taken 4 at a time is 5040.


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