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In how many ways can the letters of the word 'LEADER' be arranged?

72
144
360
720
None of these

Correct Answer: 360

Explanation:

The word 'LEADER' contains 6 letters, namely 1L, 2E, 1A, 1D and 1R.

∴ Required number of ways =	6!	= 360.
	(1!)(2!)(1!)(1!)(1!)

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