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In how many ways can the letters of the word ‘PENCIL’ be arranged so that I is always next to L.

1 Answer

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Best answer

There are 6 letters in the word ‘PENCIL’ 

Consider LI as one letter. Now 5 Letters (P,E,N,C,I,L) can be arranged in \(^5P_5=5! =120\) ways. 

Hence, the total number of ways in which I is always next to L is 120.

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