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16 Oct 2016, 03:03
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C
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Difficulty:
5%
(low)
Question Stats:
83% (01:03) correct
17%
(01:25)
wrong
based on 445
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Date
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Not Attempted Yet
A fast food company plans to build 4 new restaurants. If there are 12 sites that satisfy the company's criteria for location of new restaurant, in how many different ways can company select the 4 sites needed for the new restaurant if the order of selection doesn't matter.
A. 48
B. 288
C. 495
D. 990
E. 11880
A. 48
B. 288
C. 495
D. 990
E. 11880
16 Oct 2016, 03:13
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Bunuel
\(12C4 = 495\)
Answer will be (C) 495
16 Oct 2016, 03:23
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Bunuel
I think the answer is C. It's a combinatorics problem, since the order of the selection does not matter. Therefore 4 sites can be selected from the 12 sites available in \(\frac{12*11*10*9}{1*2*3*4}\), or 495 different ways.
