williamsantoinou4xtz williamsantoinou4xtz

04-08-2017
Mathematics

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Abdul is choosing a 3 letter password from the letters A,B,C,D, and E. The password cannot have the same letter repeated in it. How many such passwords are possible?

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Jefrafra Jefrafra

04-08-2017

There are 60 unique passwords. You can find this answer by multiplying 5*4*3 because each time you will have one less letter to choose from.

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musiclover10045 musiclover10045

04-08-2017

there are 5 letters

1st letter can be any 5

2nd letter can be any 5 -1 = 4

3rd letter can be any 5 -2 = 3

5*4*3 = 60 different combinations

Answer Link

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