Discussion of Question with ID = 067 under Permutations-and-Combinations

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Question

In how many ways can a secretary and general secretary be chosen from a committee of 13 members?

A

156.

B

161.

C

154.

D

157.

Soln.
Ans: a

The secretary can be any of the 13 members, the general-secretary can then be any of the (13 - 1) members. So the answer is 13 × (13 - 1) = 156.


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