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Greg is renting movies from the video store. He must choose 3 videos from a list of 10 videos and decide in which order to watch them. How many schedules of videos can he create?
Re: Greg is renting movies from the video store. He must choose 3 videos
[#permalink]
05 Jun 2018, 08:49
1
Kudos
Other way of solving: choosing 3 movies out of 10 can be done in 10c3 ways = 120 the selected 3 movies can be watched in 3! ways.
so, selecting AND watching can be done in 120*3! ways = 720
Bunuel wrote:
Greg is renting movies from the video store. He must choose 3 videos from a list of 10 videos and decide in which order to watch them. How many schedules of videos can he create?
Re: Greg is renting movies from the video store. He must choose
[#permalink]
01 May 2019, 23:54
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