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Mathematics 8 Online
OpenStudy (anonymous):

In CAT entrance examination paper there are 3 sections, each containing 5 questions. A candidate has to solve 5, choosing at least one from each section. The number of ways he can choose is

OpenStudy (lxelle):

3 Sections, let it be A, B and C. So he has to solve 5, choosing at least one each. He can choose, A B C 2 1 2 2 2 1 1 2 2

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