The New York Times reports 22 percent of the eighth graders who took the 2015 Common Core-aligned math test received a passing mark in New York. The New York Times pulled five questions from the test, that might be a lot harder for you than you think!

Here's one question from the test that might make you scratch your head:

"An above-ground swimming pool in the shape of a cylinder has a diameter of 18 feet and a height of 4.5 feet. If the pool is filled with water to 6 inches from the top of the pool, what is the volume, to the nearest cubic foot, of the water in the pool?"

Don't know? Get the answer and see more of the questions from the test on