Kasia W.

asked • 04/12/16

how many different combinations are possible for the order in which they reached the summit?

FOUR FIENDS CLIMBED A MOUNTAIN,ANNA,TOM,EVAN,LILY.THEY ALL REACHED THE SUMMIT ON THE SAME DAY

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Mark M. answered • 04/12/16

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4 different people could be first
3 different people could be second
2 different people could be third
1 person has to be last
 
4 · 3 · 2 · 1
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Kenneth S.

I think that they were FRIENDS, not fiends!
More importantly, this is an "order matters" situation, which means PERMUTATION; the word Combination should not appear (it's misleading).
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04/12/16

Kasia W.

THANK YOU MARK !!!!!!
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04/12/16

Mark M.

Welcome, Kasia!
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04/12/16

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