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Maths-

General

Easy

Question

The number of ways in which, 2n things of one sort, 2n things of another sort and 2n of a third sort can be divided between two person so that each get 3n things is -

3n2 + 3n – 1
3n2 –3n + 1
3n2 + 3n + 1
None of these

The correct answer is: 3n2 + 3n + 1

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