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Reservoir


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31 replies to this topic

#21 ALFRED

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Posted 18 March 2008 - 08:59 PM

haresh that's an interesting way of solving the puzzle. I suppose it's the same as asking how much each tap fills the reservoir in an hour and then finding the solution but it's a different perspective. nice.
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#22 Talha

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Posted 19 March 2008 - 03:38 PM

are'nt logical puzzles supposed to be logical not mathematical :huh:

Edited by Talha, 19 March 2008 - 03:39 PM.

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#23 JTilley

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Posted 19 March 2008 - 04:44 PM

The simplest answer is within the question.
"the third takes four days"
So, 4 Days.

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#24 vAhi

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Posted 02 April 2008 - 09:14 PM

days hours % per hour (speed)
a 2.00 48 hrs 0.020833333 = 1/48
b 3.00 72 hrs 0.013888889 = 1/72
c 4.00 96 hrs 0.010416667 = 1/96
d 0.25 6 hrs 0.166666667 = 1/6

Total Speed Per Hour 0.211805556
Time to Fill the 100% 4.721311475 hours = 1/0.211806
283.2786885 minutes

(Done on an Excel spreadsheet)
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#25 palaisipan

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Posted 11 June 2008 - 11:32 PM

days hours % per hour (speed)
a 2.00 48 hrs 0.020833333 = 1/48
b 3.00 72 hrs 0.013888889 = 1/72
c 4.00 96 hrs 0.010416667 = 1/96
d 0.25 6 hrs 0.166666667 = 1/6

Total Speed Per Hour 0.211805556
Time to Fill the 100% 4.721311475 hours = 1/0.211806
283.2786885 minutes

(Done on an Excel spreadsheet)


Spoiler for Solution

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#26 qwert

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Posted 15 June 2008 - 10:06 PM

I probably just don't get this, but how do you fill up a resevoir with four taps that empty it??
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#27 Martini

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Posted 24 June 2008 - 03:42 AM

I probably just don't get this, but how do you fill up a resevoir with four taps that empty it??

The taps are used to fill the reservoir, not empty it. The taps get their water from another source.
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#28 EPISTAXIS

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Posted 29 August 2008 - 01:55 AM

without a size or volume or an amount equal to full i cant really understand this one, but i know that it will be less than six hours. due to the fact that the last one can do it in 6hrs the others are also adding water at the same time constantly making the amount that is empty smaller as the full amount in six hours is being assisted by the slower faucets or spigots. i think i spelled spiggotts right. lol
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#29 verdeblahblah

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Posted 30 September 2008 - 09:38 PM

8 days 6 hrs to fill up :melow:
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#30 EaseZ

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Posted 09 October 2008 - 03:17 PM

The answer is as found by many, 4.72 hours. But I'm wondering how anyone could come up with an result greater than 6 hours. Unable to do the math, understandable, but such a failure of logic, that's bewildering. Misreading the question?
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