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?

(In reply to re: Answer only by armando)

They are drinking whiskey, with an 'e', so the town is probably in Ireland.

Posted by broll on 2016-05-03 11:48:37