The Magic Cafe Forum Index » » Puzzle me this... » » Weighing Puzzle (0 Likes) Martin Joseph New user UK 70 Posts  Posted: Aug 8, 2005 06:59 am 0 I love these weighing puzzles and have long been my favourites. Does anyone know the origins of this one? - I have six snooker balls. One set consists of a red, blue and white weighing 1kg each. The second set consists of a red, blue and white weighing 2kg each. Determine which balls weigh which in only two weighings on a balancing scale. pxs Loyal user London 284 Posts  Posted: Aug 9, 2005 10:19 am 0 Number the balls R1, R2, B1, B2, W1, W2 First weighing: R1 and B1 vs R2 and W1 Second weighing: B1 vs W2 There are 9 possible outcomes but only 8 possible weights - so it is solveable. R1, B1 heavy and B1 heavy: R1=2, R2=1, B1=2, B2=1, W1=2, W2=1 R1, B1 heavy and B1 equal: R1=2, R2=1, B1=1, B2=2, W1=2, W2=1 R1, B1 heavy and B1 light: R1=2, R2=1, B1=1, B2=2, W1=1, W2=2 etc. The Magic Cafe Forum Index » » Puzzle me this... » » Weighing Puzzle (0 Likes)
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