Math, asked by Faisal573, 11 months ago

How many committees of 3 can be formed from a group of 9?

Answers

Answered by ramashishgupta8161

9P3 = 504, but each group of 3 can be arranged in 3! ways. In other words, you can have a group of three people rearranged in six ways yet be the same group of people.

Thus 9C3 = 504/6 = 84.

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