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GRE Math Challenge #16 - Martha invited 4 friends to go with [#permalink]
09 Sep 2014, 01:41

Expert's post

00:00

Question Stats:

100% (01:10) correct
0% (00:00) wrong based on 3 sessions

Martha invited 4 friends to go with her to the movies. There are 120 different ways in which they can sit together in a row. In how many of those ways is Martha sitting in the middle?

Re: GRE Math Challenge #16 - Martha invited 4 friends to go with [#permalink]
23 Sep 2017, 08:56

2

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Expert's post

sandy wrote:

Martha invited 4 friends to go with her to the movies. There are 120 different ways in which they can sit together in a row. In how many of those ways is Martha sitting in the middle?