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You'll be surprised (Posted on 2016-05-03) Difficulty: 2 of 5
In a certain town, 90% of the residents drink coffee, 80% drink tea, 70% drink whiskey, and 60% drink gin.
No one drinks all four.

What percent of the residents drink liquor?

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
Hints/Tipsre(3): Answer only + mnemonicsAdy TZIDON2016-05-03 16:18:12
re(2): Answer onlybroll2016-05-03 11:48:37
SolutionSolutionBrian Smith2016-05-03 09:43:15
re: Answer onlyarmando2016-05-03 09:28:05
SolutionAnswer onlybroll2016-05-03 07:47:15
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