Brent723 Brent723

12-08-2015
Mathematics

Answered

An art gallery has 8 new paintings, all the same size, but enough room on the wall for only 6 of them. How many ways can the director arrange the 8 paintings on the wall? A. 48 B. 28 C. 20,160 D. 40,320

Verified Answer :

12-08-2015

There are 8 choices for the first painting on the wall, 7 choices for the second, and so on, down to three choices for the sixth. Our result is thus 87654*3=20,160. C is the correct answer.

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