Question

Suppose you plan to invest equal amounts of money in each of five business ventures. If...

Suppose you plan to invest equal amounts of money in each of five business ventures. If you have 10 ventures from which to make the selection, how many different samples of 3 ventures can be selected from then 10?

A) 120

B) 60

C) 240

D) 30

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Answer #1

3 ventures can be selected from 10 by 10C3 ways.

10C3 = 10! / [(10-3)! * 3! ]

= 10! / [ 7! * 3! ] .

= 120

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