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Combination

In how many w...

Question

In how many ways can the letter of the word 'STORY' be arranged so that T and Y are always together.

A

24

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B

30

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C

10

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D

48

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Solution

The correct option is D 48
Consider TY to be a single letter. Thus there are now 4 letters in the word and can be arranged in 4! ways. Multiply it by to for YT case.

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