Hope111222 Hope111222

21-06-2017
Mathematics

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Six people are in line to enter a museum. How many ways can the people be arranged in line?

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antonio1289 antonio1289

21-06-2017

you have to multiply 6*5*4*3*2*1 so it will be 720

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mreijepatmat mreijepatmat

21-06-2017

There are 6! ways = 720 ways: PROOF:

1st guy has 6 ways
2nd guy has 5 remaining ways
3rd guy has 4 remaining ways
4rth guy has 3 remaining ways
5th guy has 2 remaining ways
6th guy has 1 remaining way
So in total there are 6x5x4x3x2x1 = 750 ways

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