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True coins, fake coins (Posted on 2008-10-23) Difficulty: 2 of 5
You have eight bags, each of them containing 48 coins.

Five of these bags contain only true coins, the rest of them contain fake coins. Fake coins weigh 1 gram less than the real coins.

You do not know what bags have fake coins and what bags have real coins. You do not know also, besides that it is an integer value, the weight of the real coins.

You can use a digital or analog reading scale with precision up to 1 gram.

Making only one weighing and using the minimum number of coins, how can you find the bags containing the fake coins?

See The Solution Submitted by pcbouhid    
Rating: 5.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Oopsjoe2013-02-28 13:13:25
re: really?Charlie2013-02-27 14:24:32
really?joe2013-02-27 12:23:28
re(2): better -- within the constraints of the puzzleCharlie2008-10-24 01:57:08
Some Thoughtsre: Looking for an answerSteve Herman2008-10-23 23:32:06
SolutionLooking for an answerLeming2008-10-23 19:34:50
re: better -- within the constraints of the puzzlerod hines2008-10-23 16:42:56
Solutionbetter -- within the constraints of the puzzleCharlie2008-10-23 15:57:17
Some Thoughtsnot quite -- my bestCharlie2008-10-23 13:35:52
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