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All letters are used but first letter is a vowel?

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Total number of letters in the word MONDAY is .
Number of vowels are
Six letters word is to be formed.

First letter should be a vowel. So, the rightmost place of the words formed can be filled only in ways.
Since the letters cannot be repeated , the second place can be filled by the remaining letters. So, second place can be done in ways
Similarly, third place in ways , fourth place in ways, fifth place in ways, sixth place in 1 way.

Hence, required number of words that can be formed using four letters of the given word is
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Question Text
All letters are used but first letter is a vowel?
Answer TypeText solution:1
Upvotes150