As tap 4 can fill the entire reservoir in 6 hours, the four of them together will definitely fill it in less than that. I found an answer close to everyone else's but went about it by using a random value for the capacity of the reservoir. To avoid making my numbers complicated I used 288 gal (the LCM of 48, 72, 96, and 6). Then I found the rate of flow for each tap and added them to find that, together they would fill the reservoir at a rate of 61 gal/hr.
288/61 gives you 4 hours, 43 minutes, 17 seconds, and 7/61 of a second.
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#32
science12nerd
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Posted 20 September 2009 - 03:29 PM
Spoiler for just a hypothesis...
WAHH!!! I don't know what have overcame me that I used my old system of computation to get my hypothesized answer.... I can't believe it! I'm still quite a child anyway...
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