Study the following table to answer these questions.
Percentage of marks obtained by 7 students in 6 subjects (maximum marks for each subject is shown in brackets)
What is the overall percentage marks obtained by M in all the subjects (rounded off to two digits after decimal)?
Total score by M in all the subjects = .74 * 75 + .86 * 60 + .64 * 80 + .80 * 50 + .78 * 40 + .72 * 40 = 258.30
Total score possible = sum of maximum scores in all the subjects = 75 + 60 + 80 + 50 + 40 + 40 = 345
Overall percentage = $$ \frac{258.30}{345}*100$$ = 74.87%
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