David obtained 76, 65, 82, 67 and 85 marks (out of 100) in English, Mathematics, Physics, Chemistry and Biology. What are his average marks?
- 75
- 65
- 68
- None of these
Explanation
To calculate David's average marks, we need to add up all his marks and divide by the number of subjects:
English: 76
Mathematics: 65
Physics: 82
Chemistry: 67
Biology: 85
Total marks: 76 + 65 + 82 + 67 + 85 = 375
Number of subjects: 5
Average marks: 375 ÷ 5 = 75
So, David's average marks are: 75
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