that hill,tl;dr

housetypeb

One day,starting at Eight o clock,you go up a hill ,sometimes running and sometimes walking and it takes 12 hours, you spend the night on the hill top.
Next day,starting at Eight o clock, you start back down, sometimes running ,some times walking and it takes 12 hour again
Is there a place where you were at the the same place at the same time on both days?

El Guapo!

If the OP runs up a hill and nobody is there to see it.................does anybody give a fúck

spirit_77

huh

General General

housetypeb wrote: »

One day,starting at Eight o clock,you go up a hill ,sometimes running and sometimes walking and it takes 12 hours, you spend the night on the hill top.
Next day,starting at Eight o clock, you start back down, sometimes running ,some times walking and it takes 12 hour again
Is there a place where you were at the the same place at the same time on both days?

Obviously, yes.

Dean09 wrote: »

If the OP runs up a hill and nobody is there to see it.................does anybody give a fúck

Clearly, no.

Emiko

Maybe.

Depends what speeds and times you run and walk at.

MungBean

Is there a place where you were at the the same place at the same time on both days?

On the hill.

Banjaxed82

Surely if it took you 12 hours to get up the hill, GOING DOWN would take considerably less.....

westendgirlie

You reach the top at 8 and descend at 8 ???

stevejr

that hill,tl;dr


I thoght this was a Nazi thread (read title slowly)

spirit_77

oh its a riddle i thought it was a load of rubbish

housetypeb

Dean09 wrote: »

If the OP runs up a hill and nobody is there to see it.................does anybody give a fúck

Only the op gives a ****-what do you think he was doing alone on the hill top?

Kevin Duffy

Being imprecise about the "sometimes running, sometimes walking" means you can't say, no? You could cover 90% of the distance in 10% of the time going up, or 80/20 etc. and do something different on the way down.

Go out and do it OP and report back. Try it lots of times at different paces. We'll wait here, promise.

holystungun9

Is it the middle one?

SadieSue

https://www.youtube.com/watch?v=wp43OdtAAkM

looksee

You set off at 8 am and get to the top at 8 pm, the next day you dont start down till 8pm so you are at the top of the hill at the same time both days.

robman60

housetypeb wrote: »

One day,starting at Eight o clock,you go up a hill ,sometimes running and sometimes walking and it takes 12 hours, you spend the night on the hill top.
Next day,starting at Eight o clock, you start back down, sometimes running ,some times walking and it takes 12 hour again
Is there a place where you were at the the same place at the same time on both days?

Not necessarily. If there is no regularity to your walking and running, and your stints running/walking are indefinite lengths of time, then you won't necessarily be in the same place at the same time.

Speed is also a variable, but even if we presume that your walking speed is always uniform, and your running speed is also uniform, the time of each period of running/walking is still a variable component.

The only way that you'd end up in the same place at the same spot both days is if you are going at the exact same speed(s) for the same lengths of time, otherwise, the presence of variables will not allow this to happen.

Another alternative is that you go slowly for a certain period, more slowly than "yourself from the day before". You could still end up in the same spot if you "caught up" to yourself from the day before and passed "yourself" out. At the moment in time where you are both at the exact same place, you will also be there at the same time.

whatdoicare

Is it seven? Did I win?

Pherekydes

housetypeb wrote: »

One day,starting at Eight o clock,you go up a hill ,sometimes running and sometimes walking and it takes 12 hours, you spend the night on the hill top.
Next day,starting at Eight o clock, you start back down, sometimes running ,some times walking and it takes 12 hour again
Is there a place where you were at the the same place at the same time on both days?

Yes. You must.

General General

robman60 wrote: »

Not necessarily. If there is no regularity to your walking and running, and your stints running/walking are indefinite lengths of time, then you won't necessarily be in the same place at the same time.

Speed is also a variable, but even if we presume that your walking speed is always uniform, and your running speed is also uniform, the time of each period of running/walking is still a variable component.

The only way that you'd end up in the same place at the same spot both days is if you are going at the exact same speed(s) for the same lengths of time, otherwise, the presence of variables will not allow this to happen.

Another alternative is that you go slowly for a certain period, more slowly than "yourself from the day before". You could still end up in the same spot if you "caught up" to yourself from the day before and passed "yourself" out. At the moment in time where you are both at the exact same place, you will also be there at the same time.

What is this? I don't even

johnr1

looksee wrote: »

You set off at 8 am and get to the top at 8 pm, the next day you dont start down till 8pm so you are at the top of the hill at the same time both days.

Right answer.
move along folks, nothing to see here.

robman60 wrote: »

Not necessarily. If there is no regularity to your walking and running, and your stints running/walking are indefinite lengths of time, then you won't necessarily be in the same place at the same time.

Speed is also a variable, but even if we presume that your walking speed is always uniform, and your running speed is also uniform, the time of each period of running/walking is still a variable component.

The only way that you'd end up in the same place at the same spot both days is if you are going at the exact same speed(s) for the same lengths of time, otherwise, the presence of variables will not allow this to happen.

Another alternative is that you go slowly for a certain period, more slowly than "yourself from the day before". You could still end up in the same spot if you "caught up" to yourself from the day before and passed "yourself" out. At the moment in time where you are both at the exact same place, you will also be there at the same time.

Jesus I'd hate to have had you as a teacher.....

Kevin Duffy

Pherekydes wrote: »

Yes. You must.

Care to 'splain?

Pherekydes

johnr1 wrote: »

Right answer.
move along folks, nothing to see here.

He starts down at 8 am on the second day.

Kevin Duffy wrote: »

Care to 'splain?

Certainly. Imagine he has a brother. One starts up at 8 am and one starts down at 8 am. No matter what speed they each do they must pass each other. At that moment they are at the same place at the same time.

im invisible

that hill, too long, didnt run?

Gran Hermano

Sisyphus, is that you?

looksee

Pherekydes wrote: »

He starts down at 8 am on the second day.

Where does it say that?

Kevin Duffy

Pherekydes wrote: »

Certainly. Imagine he has a brother. One starts up at 8 am and one starts down at 8 am. No matter what speed they each do they must pass each other. At that moment they are at the same place at the same time.

That's not an answer. If they repeated it again the following day it would be possible for them to pass at a different place unless pace was exactly the same on both occasions. In the description, that's not given so it can't be assumed. In fact, the pace is inconsistent as described. The 8am/8pm solution also can't be, 'cos it's not given, unless the solution is just to assume the OP has written it half-arsed.

I think the OP was on a managment course today and remembered half the question, or is stuck helping a child with homework and didn't understand it. He's trying to get the answer by troll and error.....get me coat, I know....

looksee

The 8am/8pm solution also can't be, 'cos it's not given, unless the solution is just to assume the OP has written it half-arsed.

What do you mean? What's not given?

Kevin Duffy

looksee wrote: »

What do you mean? What's not given?

I mean he specifies "8 o'clock" and "spend the night on top", not "night and day on top". If the solution is that it's 8am/8pm, then it's not an ever-so-clever problem, it's just shít.

looksee

Evidently you are not very familiar with puzzles and riddles. Working on the facts given and not assuming anything, the 8am/8pm answer is perfectly correct:D

Kevin Duffy

looksee wrote: »

Evidently you are not very familiar with puzzles and riddles. Working on the facts given and not assuming anything, the 8am/8pm answer is perfectly correct:D

I'm very familar with them and recognise a badly written one when I see it. If that is the correct solution, it's a fúcking dull problem.

Where To

Between 8pm and 8am you're at the top i.e on both days.




First serious answer i ever gave on here:rolleyes:

im invisible

Kevin Duffy wrote: »

That's not an answer. If they repeated it again the following day it would be possible for them to pass at a different place unless pace was exactly the same on both occasions.

yeah, but the question is

Is there a place where you were at the the same place at the same time on both days?

i'd read that as 'any place', seeing as he is only doing it once (up and down), and if he were to do it again, there would be a specific (probably different) place on that occasion aswell

Doyler92

Pherekydes wrote: »

He starts down at 8 am on the second day.



Certainly. Imagine he has a brother. One starts up at 8 am and one starts down at 8 am. No matter what speed they each do they must pass each other. At that moment they are at the same place at the same time.

What if he has a sister?

Kevin Duffy

im invisible wrote: »

yeah, but the question is
i'd read that as 'any place', seeing as he is only doing it once (up and down), and if he were to do it again, there would be a specific (probably different) place on that occasion aswell

Eh, what? It has to be the same place, at the same time, so a different place would mean the answer was "no".

looksee

Ahem. Excuse me guys, I've already got it. Its not that complicated. :pac:

Doyler92

looksee wrote: »

Ahem. Excuse me guys, I've already got it. Its not that complicated. :pac:

Care to enlighten us?

looksee

Doyler92 wrote: »

Care to enlighten us?

see post 15

im invisible

ahhhhhhhh..........

tl;dbw

too long; didnt bother writing

davetherave

Day 1: Leaves at 0800 and reaches summit at 2000
Day 2: Leaves at 0800 and reaches ground at 2000

It could well be that the eight o'clock on the second day is referring to 2000 in which case the person would be at the summit at 2000hrs on both days. However if it refers to 0800 then it is near impossible to calculate without a rate of speed or what "sometimes running ,some times walking" is.
Imagine the hill is 30 miles high. (That's some hill btw)

The person could have run for 8 hours at a constant speed of 3 miles p/hour. He would have gotten to the 24 mile marker at 1600 hrs.

Now coming back down if he walk for 8 hours at a constant speed of 0.75 miles p/hour then again they would have reached the 24 mile mark again at 1600 hours meaning they are at the same point at the same time on both days.


But you have all just wasted time reading this because we don't know what speed or distance the man covered making this whole thing kind of pointless....

biko

At what time did the train leave the station again?

Ah nuts

The answer is yes.

Speed intervals make no difference. It's basically the same as one person leaving the top of the hill in the morning and another leaving the bottom at the same time. Given that in takes both same time to travel they are going to meet somewhere on the route. Thus being in the same point at the same time.

im invisible

looksee wrote: »

Ahem. Excuse me guys, I've already got it. Its not that complicated. :pac:

but, but BUT...

Pherekydes wrote: »

He starts down at 8 am on the second day.



Imagine he has a brother. One starts up at 8 am and one starts down at 8 am. No matter what speed they each do they must pass each other. At that moment they are at the same place at the same time.

or imagine the hill as a 1 lap race in mariocart time trial whatever, do one lap, save your 'ghost' start another lap, and see your ghost start off up the hill, but do a 180 at the start, (you have put yourself at the 'top' of the hill) and go the wrong way around the track, , at some point you will meet your ghost at whatever time, in the same place of the track, the same amount of time since setting out

Kevin Duffy

Ah nuts wrote: »

The answer is yes.

Speed intervals make no difference. It's basically the same as one person leaving the top of the hill in the morning and another leaving the bottom at the same time. Given that in takes both same time to travel they are going to meet somewhere on the route. Thus being in the same point at the same time.

The paces could vary all through the journey. If he reached the halway point going up at 1500 and the same point coming down at 1501, then all times would be different all the way and your solution would be invalid.

General General

Pherekydes wrote: »

He starts down at 8 am on the second day.



Certainly. Imagine he has a brother. One starts up at 8 am and one starts down at 8 am. No matter what speed they each do they must pass each other. At that moment they are at the same place at the same time.

im invisible wrote: »

or imagine the hill as a 1 lap race in mariocart time trial whatever, do one lap, save your 'ghost' start another lap, and see your ghost start off up the hill, but do a 180 at the start, (you have put yourself at the 'top' of the hill) and go the wrong way around the track, , at some point you will meet your ghost at whatever time, in the same place of the track, the same amount of time since setting out

Yo. You guys be trying to teach some pigs how to sing.

westendgirlie

where do i go from here wrote: »

Between 8pm and 8am you're at the top i.e on both days.



First serious answer i ever gave on here:rolleyes:

That's what I said!

Anyone else think this "hill" would be the ideal place to meet for boards beers?

theboss80

The bottom of the hill

/thread

OutlawPete

housetypeb wrote: »

Is there a place where you were at the the same place at the same time on both days?

Yes, Planet Earth.

Pherekydes

Kevin Duffy wrote: »

The paces could vary all through the journey. If he reached the halway point going up at 1500 and the same point coming down at 1501, then all times would be different all the way and your solution would be invalid.

The solution is so simple you are not seeing it. If they leave at the same time then speed is irrelevant. They must pass each other at some point. That is the point at which they are at the same point at the same time.

Use the example I gave earlier of the brother (sister, ghost, alter ego, whatever).

Pherekydes

where do i go from here wrote: »

Between 8pm and 8am you're at the top i.e on both days.

Unfortunately, the original question asked:

at the the same place at the same time on both days?

It must be at the same time! The period of time you gave is from 8pm to 8 am. i.e. every period on the first day is different from every period on the second day.

First day: 2000-2359
Second day: 0000-0800

animan

I think this is one for the grand old duke of york

Jazzy

https://www.youtube.com/watch?v=wp43OdtAAkM