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Pouring water III.

40 replies to this topic

#1 rookie1ja

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Posted 30 March 2007 - 06:12 PM

Pouring water III. - Back to the Water and Weighing Puzzles
Given three bowls: 7, 4 and 3 liters capacity. Only the 7-liter is full. Pouring the water the fewest number of times, make the quantities of 2, 2, and 3 liters.

This old topic is locked since it was answered many times. You can check solution in the Spoiler below.
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#2 riddler

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Posted 22 June 2007 - 02:38 PM

Twice: 7 liter into the 3 liter leaving 4 in the 7 liter container. Then pour half of whats left "4" into the last 4 liter container so you have 3-2-2. Thus two pours.
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#3 iamramy

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Posted 04 July 2007 - 06:16 AM

Twice: 7 liter into the 3 liter leaving 4 in the 7 liter container. Then pour half of whats left "4" into the last 4 liter container so you have 3-2-2. Thus two pours.

in these puzzles you cant pour a fraction of a bowl...that wouldnt be much of a puzzle now would it?

this is what i got in 5 pours:(using the same 3-digit code)
700-403-133-124-520-223
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#4 funky_D

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Posted 04 July 2007 - 02:19 PM

you can't do 133 without doing 430...
i did 700, 403, 430, 133, 142, 520, 223.
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#5 jsimms

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Posted 12 July 2007 - 01:17 PM

how about 700 304 331 601 241 223
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#6 normdeplume

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Posted 12 July 2007 - 03:25 PM

how about 700 304 331 601 241 223

Assuming jars are 7 - 3 - 4 based on your first pour, your fourth pour goes out of sequence (which would mean you have 4 in your 3 jar! You would need to pour the 1 in the 4 into the 3. this effectively is the same as the admin's answer.
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#7 cmcl

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Posted 13 July 2007 - 08:39 PM

you can't do 133 without doing 430...
i did 700, 403, 430, 133, 142, 520, 223.

You can't go from 142 to 520. There's a 502 step in between, which makes it seven steps.
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#8 moboo's pain

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Posted 20 July 2007 - 11:23 PM

i still dont see whats wrong with 700 403 223
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#9 brownknows

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Posted 23 July 2007 - 02:18 PM

i still dont see whats wrong with 700 403 223

You can't pour *half* of the 4 liters into another bowl, because you have no way of accurately measuring a half. You must pour entire bowl-fulls.
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#10 rwright88

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Posted 13 August 2007 - 09:26 PM

I had to register just to post this answer. It is three pours:

From the 7, pour into the 4 and 3 (leaving the 7 empty). Then pour half of the four into the 7, leaving 2 liters in the 7, 2 liters in the 4 and 3 liters in the 3.

700, 340, 043, 223
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