The score the student must get on the next test to get a C average or better is 86.
From the information given the pass a course with a C grade, a student must have an average of 70 or greater and students grades on three test are 60,71, and 63.
The next score will be calculated as x.
60 + 71 + 63 + x = (70 × 4)
194 + x = 280
x = 280 - 194
x = 86
Therefore, the next score must be 96.
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