## lgbasallote Group Title 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? one year ago one year ago

1. lgbasallote Group Title

it's not that simple....

2. pathosdebater Group Title

6*6*6*6*6

3. pathosdebater Group Title

6^5 = 7776

4. lgbasallote Group Title

no idea where you got that solution....

5. ChmE Group Title

$\frac{ 6P5 }{ 6^{5} }$

6. pathosdebater Group Title

6P5/6^5

7. lgbasallote Group Title

oohh so close...

8. pathosdebater Group Title

5P5/5^5?

9. HyperChemist Group Title

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.

10. lgbasallote Group Title

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

11. lgbasallote Group Title

@pathosdebater why so?

12. HyperChemist Group Title

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

13. lgbasallote Group Title

why put in algebra...

14. pathosdebater Group Title

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

15. HyperChemist Group Title

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

16. lgbasallote Group Title

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

17. HyperChemist Group Title

I guess your right it only complicates things for me

18. pathosdebater Group Title

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

19. ChmE Group Title

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.

20. pathosdebater Group Title

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

21. lgbasallote Group Title

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

22. HyperChemist Group Title

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

23. lgbasallote Group Title

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

24. pathosdebater Group Title

Not in America!

25. HyperChemist Group Title

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