Question

there are five people in an elevator in a six storey building. What is the probability that each person gets off the elevator on unique storeys of the building?

Answer 1

it's not that simple....

Answer 2

6*6*6*6*6

Answer 3

6^5 = 7776

Answer 4

no idea where you got that solution....

Answer 5

\[\frac{ 6P5 }{ 6^{5} }\]

Answer 6

6P5/6^5

Answer 7

oohh so close...

Answer 8

5P5/5^5?

Answer 9

Well, I hope to learn something new today, given the chance that all the people got off at different stories, wanted to go to different rooms, had to go down or up, I'd say that it would look something like...

ah, and theres only 5 people so...P=people F+Floor

X: starting place Y: Ending place

Y=(5f)...and I do not know what dodo from there.

Answer 10

that's a bit complicated @HyperChemist ....

Answer 11

@pathosdebater why so?

Answer 12

Oh, Y=((5f)-x)5

Answer 13

why put in algebra...

Answer 14

Well if you count the floor they all get into the elevator on, then there are only 5 other floors left.

Answer 15

well, for me it helps...Hoe else could I write it so?

Answer 16

so why didn't we get that solution in the first place?

Answer 17

I guess your right it only complicates things for me

Answer 18

The problem statement specifies that there are 6 stories, so there are 6 other floors to go. Therein lies the misunderstanding...

Answer 19

You have to include all 6 floors. It doesn't say that some weirdo can't ride the elevator up to the top then back down to the first and gets back off.

Answer 20

Exactly... So, 6P5/6^5

Answer 21

........logical....but doesn't make sense......

Answer 22

right! its all about probability, forget the relativity of the problem

Answer 23

that's actually illegal and unethical in a lot of countries

Answer 24

Not in America!

Answer 25

good answer! lets not get more into politics now...