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Unformatted text preview: river once. When they meet for the second time, they have spanned the river together twice more. As the boats are travelling at a constant speed, the last distance covered by each of them is twice the distance covered previously. So one of the boats has travelled 700 + 2*700 = 2100 feet. Since the boats are 400 feet from the bank, the river is 2100 - 400 = 1700 feet wide. this page....
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- Spring '10
- Combinatorics, English-language films, Brian Eno, Michael Mitchell, Dilip Chaudhary, Douglas Vander Griend, Deyo Dada