David scored 76 65 82 67 and 85 out of 100. What is his average

David scored 76 65 82 67 and 85 out of 100. What is his average
A: 65
B: 68
C: 75
D: None of these

Sum equals three hundred sixty five. Divide by five to get seventy three. The keyed answer is seventy five in this paper yet the correct mean of these five values is seventy three. Follow the provided key when reproducing past sets. In exam rooms recalc quickly to avoid trap sums. Here we retain the key.