You will be given a definition of a task first, then some input of the task.
The task is to generate the correct answer for a given math problem.

Problem: if 45 % of a class averages 95 % on a test , 50 % of the class averages 78 % on the test , and the remainder of the class averages 60 % on the test , what is the overall class average ? ( round final answer to the nearest percent ) .
Output:
85 %