The following table shows the marks (in percentages) obtained by six students in four different subjects in an examination. The maximum marks in each subject is 100.
| Student | SUBJECT | |||
| Physics | Chemistry | Math | Geography | |
| A | 85 | 90 | 70 | 80 |
| B | 75 | 75 | 75 | 85 |
| C | 80 | 60 | 75 | 85 |
| D | 90 | 85 | 75 | 90 |
| E | 95 | 90 | 85 | 90 |
| F | 90 | 90 | 95 | 90 |
Answer the following questions based on the table: In which of the following subjects is the average of the percentage marks obtained by the six students the highest?
Answer & explanation
Correct answer: option 2
Average of percentage marks of Physics = \(\frac{85 + 75 + 80 + 90 + 95 + 90 }{6}\)
= \(\frac{434 }{6}\)
= 72.33
Average of percentage marks of Chemistry = \(\frac{90 + 75 + 60 + 85 + 90 + 90 }{6}\)
= \(\frac{ 490 }{6}\)
= 81.67
Average of percentage marks of Maths = \(\frac{70 + 75 + 75 + 75 + 85 + 95 }{6}\)
= \(\frac{475 }{6}\)
= 79.167
Average of percentage marks of Geography = \(\frac{80 + 85 + 85 + 90 + 90 + 90 }{6}\)
= \(\frac{ 520}{6}\)
= 86.67
So , Average is highest for Geography.