Discussion of Question with ID = 100 under Permutations-and-Combinations

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Question

How many four letter words, with all the letters different, can be formed out of the letters of the word 'CONSUMABLE'?

A

5040.

B

5050.

C

5030.

D

5060.

Soln.
Ans: a

This word has 10 different letters. The number of possibilities is 10P4 = 5040.


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