Brain Teasers
The Kebab Express
In the land of MADADIA there are two cities, one called Kebabville and one called Kebabchester. Each at opposite ends of the country. There is a train service between the two cities called the "Kebab Express" that starts at 10:00pm for each city and arrives at their respective destinations at 11:30pm three days later. So a train will leave every day from either city at 10:00pm and arrive at the opposite city at 11:30pm in three days time.
One day Mad Ade got on the train at Kebabville and travelled all the way to Kebabchester. How many other "Kebab Express" trains would Mad Ade see go the opposite direction during his journey?
One day Mad Ade got on the train at Kebabville and travelled all the way to Kebabchester. How many other "Kebab Express" trains would Mad Ade see go the opposite direction during his journey?
Answer
Mad Ade would see seven "Kebab Express" trains go past in the opposite direction.Let's say that Mad Ade travelled on the "Kebab Express" on Wednesday 10:00PM from Kebabville. The first train he would have crossed is the one scheduled to arrive at Kebabville at 11:30 PM the same day i.e. the one that left Kebabchester at 10:00 PM on last Sunday.
He will pass 7 other trains before arriving at his destination. The first, he will see approximately 45 minutes after departure. Then he will see one train approximately every 12 hours for three days. This is because the trains leave from each end of the track once every 24 hours travelling toward each other.
Also, he would have crossed the last train just before reaching Kebabchester on Saturday.
Thus, Mad Ade must have crossed 7 "Kebab Expresses" during his journey.
Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments
well know the hidden submitter really has no use on u mad ade. unless theres another user going around crazy with kebabs.
1. i don't get it, prolly cuz i'm stupid.
2. what's a kebab?
2. what's a kebab?
Mad-ade your'e kicking the arse out of this kebeb obsession,what is it with you and kebeabs? i REALLY think you need to get a life,oh and people of average intelligence don't want to be pounded by all your "look at me i'm a mathematical genius" bollocks.. we want to see whitty,clever,amusing teasers!! jeeeez,i got enough math rammed down my throat at school.
And I suppose your lack of teasers cry out "look at me Im a first class retard." and I am assuming that math was not the only thing you regularily had shoved down your throat.
No mad-ade my lack of teasers means i have a life you sad little prick,i don;t spend all day sat on my fat arse writing 308 teasers,the majority of which are copied from mindtrap!! i could've done that because any sad little retard can copy stuff,as you have clearly shown! And by the way i usually get your teasers anyway,so maybe i'm not a retard,i'll come up with a teaser just for you...an original one,you know?one that i thought of MYSELF!!
Mad-ade you're obviously from England,where abouts?? i get the impression you are from up north,in the Wigan/Manchester area!!?
good, you come up with a teaser, I shall look forward to it, and the other 307 that will obviously be better than mine. You say you have a life, yet you have spent the last few days commenting on nearly all my teasers, so it can't be much of a life then. Yes I am from England, and no I am not from wigan/Manchester or the surrounding environs.
I never said I would come up with 308..so where you got that from I'll never know.As for having a life,yes I do,but i've got some time on my hands at the minute,so I come on here to view teasers.The thing is YOU comment on lots of other peoples teasers and put them down,because they're not as good as "king of self love Mad-ade" which is why I am giving you some stick.So wise up and shut up........
fair enough, I do give other people stick, but I at least submitted some teasers before feeling in the postion to critize others. I see you don't feel that you need to put your own teasers up for scrutiny, before trashing others. Perhaps you daren't, maybe you can't. It dosen't matter, my teasers are here for all to examine and disect. If you dont like or understand them, then I can't help you, but you really need to see some one about your anger problem and the strange fixation you have for me. It is very flattering that you take time out of your "busy" life to follow me around.
Why critisize anyway!!? whether you've submitted or not!! to you get your sick kicks from that! And i don't follow you anywhere,I just know that i get on your nerves,maybe i'm the one thats sick!!! he!he!he!he!
Actually, this is one of the first semi-decent teasers I've seen from Mad-Ade. This is quite a step up from the pathetic King and flowerbed teaser and the like.
Okay, I'm confused. All this past-dated mutual hate society stuff aside, I only came up with 4 trains, not 7. You said they leave each night at 10 pm, thus only once a day, but you say that he will pass a train every 12 hours. How is this possible?
Fishmed, the given answer makes perfect sense. A train leaves from each station at 100 PM, i.e. every 24 hrs. If one train was stationary, it would meet trains every 24 hrs., but since the trains are moving towards each other at the same speed, it encounters a train every 12 hrs. This is similar to the Doppler Effect. Another way to look at it is that the train will reach the destination 3 days later at 11:30. The first train it encounters is the one that left 3 days earlier and the last train is the one that leaves 3 days later. Since it also meets all the trains in between, there are a total of 7 trains it meets.
Yeah, I got that after I pm'd Mad and he reminded me of the three trains that were already enroute from the three days before, that I had overlooked. Thanks for pointing it out too.
Yeah but it says A Kebab Express train, not a Kebab Express TRAIN COMPANY!!! :O
I forgot about the extra three trains too! Good one!
To post a comment, please create an account and sign in.
Follow Braingle!