posted by Curious .
On an 18-hole golf course, there are par-3 holes, par-4 holes, and par-5 holes. A golfer who shoots par on every hole has a total of 66. There are twice as many par-4 holes as there are par-5 holes. How many of each type of hole are there on the golf course?
How many par-3 holes are there__?
How many par-4 holes are there__?
How many par-5 holes are there__?