Puzzle: Two vines, one Grape and other Poison Ivy, are both climbing up and round a cylindrical tree trunk. Grape twists clockwise and Poison Ivy anticlockwise, both start at the same point on the ground. before they reach the first branch of the tree the Grape had made 5 complete twists and the Poison Ivy 3 twists. not counting the bottom and the top, how many times do they cross?
Source: Pratik Poddar puzzle blog
Solution: The best and most easy to understand the solution is that we can cut the cylinder to make a rectangle of width = 1 complete circle.Then just count the number of intersections. We are not counting the top and the bottom one and thus it will be 5 + 3 -1 = 7.
Winner: No one today.
They don't cross, jasmine and rose are bushes not vines.
ReplyDeleteThanks for the info. I changed the vines to Grape and Poison Ivy.
ReplyDelete8
ReplyDelete