bad rider said:
Ok yet another this one might not be right as I heard it a while back so if you've heard it before then kick me if i've done it wrong.
Indianna Jones, a woman, a child and a old man have 21 minutes until the volcano erupts and destroys the only bridge out. However it's dark and they need a torch to see where Planks have rotted in the bridge, and only two people can cross at any time. They only have one torch.
Given that it take indy 3 minutes the woman 4 minutes the child 5 minutes and the old guy 6 minutes, how do they make there escape?
Edit: God knows how blanks would rot into a bridge...
Indie crosses with the old guy and the torch Total time = 6 minutes
Indie goes back across Total = 9 minutes
Indie crosses with the kid TT = 14 min
Indie goes back TT = 17min.
Indie Crosses with the woman. TT = 21min.
All safe. YAY