Measuring water | ![]() |
If you had an infinite supply of water and a 5 gallon and 3 gallon bucket, how would you measure exactly 4 gallons?
(scroll down for answer)
(scroll down for answer)
Answer:
5 3
Fill up 3 0 3
Tip into 5 3 0
Fill up 3 3 3
3 to 5 5 1
Tip out 5 0 1
3 to 5 1 0
Fill up 3 1 + 3 = 4
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Comments
ithink different: let keep 5 gallon bucket as A adn other bucket Bfill up A and pour it on B
there will be 2 gallons left
and repeat once more
u will have agian 2 gallons left
and there u go 4 gallons
- (17 May 2009)
Put water 1/2 of 5=2.5 gal
Put water 1/2 of 3=1.5 gal
Total =4.0 gal
- Nan Nwe Nwe (28 Jul 2009)
Fill both buckets and freeze them then measure the difference that will equal 2 gallons double the distance and and u have four once thawed u will know how deep 4 gallons will be
- Kurt (24 Aug 2009)
lol @ the silliness of comments... what if the jugs are shaped like milk jugs and have irregular shape.
A more efficient way:
Fill up 5 gallon jug and pour it into 3 gallon jug. 2 gallons left.
Pour out the 3 gallon jug and pour 2 gallons into the 3 gallon jug.
Fill up the 5 gallon jug and pour enough to fill up the 3 gallon jug (it has space for 1 more gallon). You will have 4 gallons left in the 5 gallon jug.
- kevin (13 Nov 2009)
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