A student's average (arithmetic mean) test score on 4 tests is 78.What must be…
TCS · 2024
A student's average (arithmetic mean) test score on 4 tests is 78.What must be the student's score on a 5th test for the student's average score on the 5 tests to be 80?
- A.
78
- B.
88
- C.
89
- D.
98
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