Shipwrecked Saga

The Puzzler

RAY: This is the first in the rising floodwaters series. A family of four and their dog get trapped on an island when rising flood waters tear out the bridge they used just a few hours before. Frantically they search for some means of crossing back to the mainland and finally, when they've just about given up hope, the son says, "I found a small boat and oars." They gather around but their joy is short lived because the manufacturer's instructions -- it's printed on the back of the boat -- tells the boat to carry only 180 pounds. Thank God Grandma's not here. It's just Mom, Dad, the two kids and the dog. And the dog is the only one of them who can swim. So the boat can carry only 180 pounds.

Well, the father weighs 170. The mother says she weighs 130. The son is 90 pounds. And the daughter is 80. The dog weighs 15 pounds. Everyone can row except the dog, who can swim. And the question is: is there any way the family can be saved? And if so, what are the fewest number of crossings to save everyone?

Think you know? Drop Ray a note!

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