Credit courses
A student takes a 5 credit course, a four-credit course, two three-credit courses, and a one-credit course. He gets a C in the five-credit course, a B in the four-credit course and one of the three-credit courses, and an A in the other three-credit course and the one-credit course. On a GPA scale, C=2, B=3, and A=4. What is the student's GPA for this semester?
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