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Basic concepts of permutations and combinations

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

Akash chandra

CA Foundation

3K+

12-Apr-20

137

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


Suraj Lakhotia

Suraj Lakhotia

Admin

22-Apr-20

Tnq sit


Sai Sai

Sai Sai

CA Foundation

2K+

24-Apr-20

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