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Basic concepts of permutations and combinations

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A team of 12 men is to be formed out of n persons. Then the number of times 2 men A and B are together is

Akash chandra

CA Foundation

★ 3K+

12-Apr-20 09:57

416

Answers (2)

Two people out of the 12 are already been selected that is A & B so we need to select just 10 more out of n-2. Answer is (n-2)C10

CA Suraj Lakhotia

Admin

22-Apr-20 14:50

Tnq sit

Sai Sai

CA Foundation

★ 2K+

24-Apr-20 08:58

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