Monday, 27 April 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:

ElectronZ said...

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.

Melvin said...

Woot ! U r exactly right ! =D