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Test used by Microsoft for potential employees

  • 22-10-2006 4:49pm
    Registered Users Posts: 37

    Hey peeps,

    This one might be old news to some of you but does anyone know the answer to this...
    I don't know the answer...


    " This is the actual test given by Microsoft to prospective employees. I am
    deadly serious that this is solvable and without any tricks. No one there was
    able to solve it. See how you do.

    "U2" has a concert that starts in 17 minutes and they must all cross a bridge
    to get there. All four men begin on the same side of the bridge. You must
    help them across to the other side. It is night. There is one flashlight. A
    maximum of two people can cross at one time.
    Any party who crosses, either 1 or 2 people, must have the flashlight with
    them. The flashlight must be walked back and forth, it cannot be thrown, etc.
    Each band member walks at a different speed. A pair must walk together at the
    rate of the slower man's pace.

    Bono: 1 minute to cross
    Edge: 2 minutes to cross
    Adam: 5 minutes to cross
    Larry: 10 minutes to cross

    For example: If Bono and Larry walk across first, 10 minutes have elapsed
    when they get to the other side of the bridge. If Larry then returns with the
    flashlight, a total of 20 minutes have passed and you have failed the mission. "


  • Closed Accounts Posts: 54 ✭✭Steveo1983

  • Registered Users Posts: 2,197 ✭✭✭wba88

    (whistles) TAXI!

    I did it.


    Edge and Bono go over 2mins
    Edge goes back 2mins
    Adam and Larry go over 10mins
    Bono goes back 1min
    Bono and Edge go over 2mins
    Total 17mins

    Oh Yeah!

    sry dont know how to do proper spoilers

  • Registered Users Posts: 37 macphisto

    Thanks Steveo,

    That was starting to annoy me...too many brain cells killed off by beer :D

    WBA... thats close enough for a spoiler


  • Registered Users Posts: 2,197 ✭✭✭wba88

    When do i start???

    btw i did it in my head, i didnt cheat :)

  • Registered Users Posts: 1,672 ✭✭✭deman

    Simple!! Can't believe that MS employees didn't get it.

    Did it in my head in less than 90 secs....... about.

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  • Registered Users Posts: 1,391 ✭✭✭fatherdougalmag

    Maybe if they did 'City of Blinding Light' they could get Edge over first for his guitar bit at the start.

    That might buy the rest of them some time to get over.

    Alternatively, they could ask the crowd to come over to them.

  • Closed Accounts Posts: 583 ✭✭✭monkey tennis

    Bono carries Larry over on his back: 1 min
    Bono returns: 1 min
    Bono carries Adam over on his back: 1 min
    Bono returns: 1 min
    Bono carries the Edge over on his back: 1 min

    Total: 5 mins WINNAR!

  • Closed Accounts Posts: 1 RamRod2485

    Bono and Edge cross together first takes 2 mins.
    Bono comes back in 1 min.
    Bono stays back, Adam and Larry cross together and take 10 mins.
    Edge who went there first with Bono, comes back in 2 mins.
    Edge and Bono cross again in 2 mins!!
    Totally 2 + 1 + 10 + 2 + 2 = 17 mins... ;-)

  • Registered Users Posts: 223 ✭✭NewDirection

    The answer is the can't...
    Its about being able to admit that you cant find an answer..