Monday, April 27, 2009

Bridge @ Night

4 people want to cross a bridge at Night.
They got 1 torchlight only. The bridge can support 2 people at a time.
Person A takes 1 minute to walk.
Person B takes 2 minute to walk.
Person C takes 5 minute to walk.
Person D takes 10 minute to walk.
The torchlight can lasts 17 minutes only.
How can they get across it?

The above solution is a logical answer, so no "Smart aleck" solutions xD
Any comments just click the comments below to post ur queries.

2 comments:

  1. 1 and 2 goes.
    1 comes back.
    10 and 5 goes.
    2 comes back.
    1 and 2 goes agn.

    2+1+10+2+2.

    Sweet 17.

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