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Math and Arithmetic
Animal Parasites

Bruce has a pet worm that fell into a well The well is 37 feet deep Each day the worm climbs up 7 feet but each night it slides back down 2 feet How many days will it take for Bruce's worm to ge?


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February 28, 2010 11:41PM

7 days. each 24 hrs he achieves 7-2=5ft, so in 6 days he has climbed 30ft on the 7th day he climbs the last 7ft and is out and doesn't therefore slide back 2ft