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Weight Limited Bridge (Posted on 2016-08-01) Difficulty: 2 of 5
A driver needs to take his truck across a mile long bridge with a 5,000kg weight limit. This bridge happens to be one of those logic puzzle bridges which will collapse as soon as any weight over the limit is on the bridge.

The driver pulls the truck onto a conveniently placed weigh station right in front of the bridge. It reports the total weight of the truck, including the driver and everything contained in the truck, is 4,999.99kg.

The driver starts to head across. When he reaches the half-way point a sparrow flies overhead looking to land on the truck. The sparrow weighs 30g. What does the driver need to do to avoid the sparrow tipping the weight of the truck past the 5000kg weight limit?

No Solution Yet Submitted by Brian Smith    
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  Subject Author Date
Some Thoughtsre: validity of the puzzleAdy TZIDON2016-08-04 10:54:04
solutionDan Rosen2016-08-04 07:46:09
re(2): answer - spoilerAdy TZIDON2016-08-01 22:46:43
Solutionre(2): answer - spoilerJer2016-08-01 21:37:50
Solutionre: answer - spoilerSteve Herman2016-08-01 19:28:46
Solutionanswer - spoilerAdy TZIDON2016-08-01 16:29:54
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