How much does a fish weigh if it weighs 1 pound plus half its own weight?
....
At the risk of giving a hint.. this puzzle does have a solution, and it's unique.
Saturday, September 12, 2009
Robot Fish!
How much does a fish weigh if it weighs 1 pound plus half its own weight?
....
At the risk of giving a hint.. this puzzle does have a solution, and it's unique.
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9 comments:
Oooh un-solvable riddle
2lbs. Each half weighs 1lb.
Ok I've had my coffee now...
Reads like a bad equation to me but yeah.
I'd say the weight is 2 pounds. The trick lies in understanding the wording of the question. It's designed to trick people into thinking of it in basic formula terms (x = 1+ 1/2x).
Devious.
2 pounds.
1 half of 2 is 1, plus 1, equals 2.
my intellect is not as mighty as brother Steve, but the answer is 2.
2 halves make a whole, and 1 half is a known quantity. So the fish weighs 2 pounds.
How can you guys be sure that half the fish = 1 lb?
There is no relation between the "1 pound" and the "plus half its own weight"
You know that you must add 1 + weight/2 = total weight, right? There's only one solution that works.
Try it with any random numbers...
1 + 100/2 = 100 ?? No, that's 51, and 51 does not equal 100.
1 + 4/2 = 4 ?? That's 3 and 3 does not equal 4.
1 + 2/2 = 2 ?? Yep.. that's the only equation that works.
Ya, the trick is that the relation is directly established between 1 and one half. The relation is the "How much does a fish weigh?" implying that 1 + Half = Full Weight. Two halves make a whole and as 1 half portion of the total weight is already established the second half must be identical (otherwise it wouldnt be half). The trick is all in the wording of the question.
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