If 12 men do a work in 80 days, in how many days will 16 men do it?  Choose one:  A) 20  B) 29  C) 22  D) 60  E) 12
12 * 80 = 16 * x   x = 60 days   Answer: 60
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If 12 men do a work in 80 days, in how many days will 16 men do it?