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Question

Arya writes the eleven-letter word 'DISTURBANCE' on a paper. She then interchanges the first letter with the last letter, the second letter with the tenth letter, and so on.

After arranging the letters, find how many words can be formed using the first, third, eighth, and ninth letters.

A
One
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B
Two
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C
Three
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D
More than three
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Solution

The correct option is D More than three

The new letter sequence is ECNABRUTSID.

First letter = E
Third letter = N
Eighth letter = T
Ninth lettter = S

Words that can be framed are:
TENS, NEST, SENT, and NETS

Thus, there are more than three words that can be formed using the letters.

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A+B+C=N (N Fixed)
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