Question : The following table shows the marks (in percentages) obtained by six students in four different subjects in an examination. Maximum marks in each subject are 100. Answer the following question based on the table:
| Student | Subject | |||
| SST | PHYSICS | CHEMISTRY | MATHS | |
| A | 92 | 90 | 90 | 80 |
| B | 90 | 80 | 85 | 85 |
| C | 80 | 80 | 65 | 70 |
| D | 85 | 80 | 82 | 75 |
| E | 80 | 75 | 75 | 85 |
| F | 90 | 90 | 90 | 85 |
What is the number of students whose overall percentage obtained is 80% and above?
Option 1: 4
Option 2: 5
Option 3: 2
Option 4: 3
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Correct Answer: 4
Solution :
Maximum marks = 400
Marks obtained by A = 92 + 90 + 90 + 80 = 352
Percentage of A $=\frac{352}{400}\times100=88$%
Marks obtained by B = 90 + 80 + 85 + 85 = 340
Percentage of B $=\frac{340}{400}\times100=85$%
Marks obtained by C = 80 + 80 + 65 + 70 = 295
Percentage of C $=\frac{295}{400}\times100=73.75$%
Marks obtained by D = 85 + 80 + 82 + 75 = 322
Percentage of D $=\frac{322}{400}\times100=80.5$%
Marks obtained by E = 80 + 75 + 75 + 85 = 315
Percentage of E $=\frac{315}{400}\times100=78.75$%
Marks obtained by F = 90 + 90 + 90 + 85 = 355
Percentage of F $=\frac{355}{400}\times100=88.75$%
Only four students' overall percentage is 80% and above.
Hence, the correct answer is 4.
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