Answer: 83
Step-by-step explanation:
Since the student want to have a mean of 83 in the 7 tests, the total score of the tests will be:
= 83 × 7
= 581
Then, we add the value of the 6 tests and this will be:
= 88 + 73 + 81 + 83 + 79 + 94
= 498
We will now subtract 498 from 581 and this will be:
= 581 - 498
= 83
He needs to score 83 in the 7th test
