My current course average is 71. I need 77 to pass thecourse. What score do I need on the next three exams?
It depends upon how many tests that you have already taken.
If you have taken only one, then one way to solve the problem is this: (71 + 3x)/4 = 77
---> 71 + 3x = 308
---> 3x = 237
---> x = 79
You would have to average 79 on the last three tests.
