Hello everyone, Im pretty lost on this word problem. I know the answer but I have no clue on how to achieve this answer. So it goes like this:

This year, 75% of the graduating class of Harriet Tubman High School had taken at least 8 math courses. Of the remaining class members, 60% had taken 6 or 7 math courses. What percent of the graduating class had taken fewer than 6 math courses?

I believe the answer is 10% but I would really like to know how to solve this!