A snail is crawling straight up a wall. The first hour it climbs 16 inches, the second hour it climbs 12 inches and the each succeeding hour, it climbs only three-fourths the distance it climbed the previous houra. How far does the snail climb during the seventh hour?

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Answers

2016-07-17T10:53:43+08:00
The answer is 55.45703125 or 55 117/256
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