Saturday, July 7, 2007

Crossing the bridge !

A,B,C and D have got 17minutes to cross a bridge. A takes 10minutes,B takes 5 minutes, C takes 2 minutes and D takes 1 minute to cross the bridge. They only have one lantern and for each crossing of this bridge they require the lantern. The bridge can support only two persons at a time. Is it possible to cross the bridge in 17minutes. If possible,how?

5 comments:

Rakesh B.S said...

Tats a simple 1.. :) Its possible to cross the bridge in 17 minutes..

Unknown said...

ya its possible..
C&D crosses D returns =3min
A&B crosses C returns =12min
C&B crosses =2min
total 17 min

Rakesh B.S said...

last C&D goes back.. u made typo.. :)

Unknown said...

ohhh :)

Anonymous said...

Interesting to know.