There is an adult and two children waiting with a canoe on the bank of a river. They need to cross the river, but aren't sure how. They are each capable of canoeing, but they all together exceed the weight limit and will sink. The canoe is rated for one adult or two children. How can they all cross safely in the canoe?
Hey, great blog. The two children could cross the river. The child still in the canoe would cross back to the adult and get out of the canoe. The adult could then cross, get out and the other child get back in. The child would row back pick up the second child and they could again cross to join the adult. That is a lot of rowing. I think they should test their luck and swim. Good work on your blog.
ReplyDeleteThis is an excellent problem--I'm going to use it with my math classes. It reminds me of a similar problem involving a man, a dog, a chicken and a sack of grain. They need to cross a river on a very small boat that will only hold the man and one other item. Left unattended, the dog would eat the chicken and the chicken would eat the grain. What is the quickest way to get all across the river safely?
ReplyDeleteHow fun! I think this a great idea you could do with students; its fun and challanging. I would make the kids swim ;)
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