JEE MATHEMATICS MCQ: PERMUTATIONS

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The letters of the word 'RANDOM' are arranged in all possible ways. The number of arrangements in which there are 2 letters between

\mathrm{R}

and

\mathrm{D}

View answer and explanation

Correct option: C

144

Option C (144) is correct because it accounts for the positions of R and D with two letters in between, the arrangements of those two letters, and the arrangements of R and D themselves.

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