If it cost 3.75 for 60 sheets of colored paper how much would it cost for 180?

If it cost 3.75 for 60 sheets of colored paper how much would it cost for 180?
11.25 = The way to figure this is out is to use logic. How many times bigger is 180 than 60?
It is 3 times bigger. So the the cost would be 3 times more. 3 times 3.75 = 11.25