JEE MATHEMATICS MCQ: PERMUTATIONS

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Five distinct letters are to be transmitted through a communication channel. A total number of 15 blanks is to be inserted between the letters with atleast three between every two. The number of ways in which this can be done, is

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Correct option: C

2400

Option C (2400) is correct because it represents the number of ways to insert 15 blanks between 5 letters with at least 3 blanks between each pair.

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