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Sunday, May 15, 2011

A puzzle...

There are 4 people who need to cross the river by bridge in the night.
They have only one torch to cross in that dark night and 1st 2nd 3rd and 4th person will take 1,2,5,10 minutes respectively they must cross river by bridge in 17 minutes....!!
Maximum 2 people can cross at same time..!!
The torch must be walked across river (That's while passing by bridge they need to carry and no one must throw after reaching other side) 



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