Arithmetic Ability
Permutations and Combinations

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Q.

How many arrangements of the word TRIGONAL can be made if only two vowels and three consonants are used?

View Answer

Correct choice: B

Explanation:

First we need to choose two vowels 3C2 and then three consonants 5C3 . Now that we have 5 letters required to make the word,arrange them in 5! ways. So,3C2*5C3*5! = 3600
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