There is a fire in a building. They need exactly 7 quarts of water to put it out (don't worry about why). A man goes out to the river with the only two bukets they have: a 5 quart bucket and a 3 quart bucket. The buckets are not see-through and they have no level indicator markings. How does the man get exactly 7 quarts of water?
brain teaser #8
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Screw it. Just fill both and make good and sure it's out.Comment
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Well done!Originally posted by tootie
Fill the 5 qt. bucket first and dump it into the 3 qt. bucket, then dump that out. Then dump what's left in the 5 qt. bucket (2 qt.) into the 3 quart bucket and then fill the 5 qt. bucket back up. 2+5=7Comment
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The man takes the 5 quart bucket and fills it up. Then he dumps the water into the 3 quart bucket. Then he dumps the 3 quart bucket back in the river. He then dumps what's left in the 5 quart bucket (2 quarts)into the 3 quart bucket. Then he fills up the 5 quart bucket. Both buckets together now total 7 quarts: 5 quarts in the 5 quart bucket and 2 quarts in the 3 quart bucket.
well doneComment
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The 5 quart bucket is filled and emptied into the 3 quart bucket, leaving 2 quarts.
The 3 quart bucket is then emptied, and filled with the remaining 2 quarts from the 5 quart bucket.
Then, you fill up the 5 quart bucket, and now you got 7 quarts.
I've seen Die Hard 3, too.ZiggydiZig!Comment




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