GATE Computer Science (CS) 2020 Solved Papers

Question : 58 of 65

Marks: +1, -0

The number of permutations of the characters in LILAC so that no characters appears in its original position, if the two L’s are indistinguishable, is _______.

Your Answer:

Validate

Solution:

LILAC
IAC
3! + LLAC

3+\;{4}/{2}+3+\;{4}/{2}+\;{4}/{2}

3+2+3+2+2=12

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