The details of books of 6 subjects on the first floor of the college library are given in the following table.
| English | French | Computers | Circuit Theory | Maths | Graph Theory | |
| No. of books | 7532 | 308 | 14,308 | 9948 | 17,462 | 642 |
The ratio of Maths and Computers to Circuit Theory and Graph Theory is:
The following table gives the percentage of marks obtained by six students in five different subjects in an examination.
(The numbers in the brackets give the maximum marks in each subject.)
| Student’s Name | Subjects (Maximum marks) | ||||
| Maths (150) | English (130) | Hindi (120) | Physics (100) | Chemistry (60) | |
| Aanya | 90 | 100 | 90 | 90 | 80 |
| Aarav | 100 | 80 | 90 | 70 | 70 |
| Lavi | 90 | 90 | 80 | 60 | 50 |
| Monika | 80 | 70 | 100 | 50 | 100 |
| Devyansh | 50 | 60 | 100 | 100 | 90 |
| Tanmay | 60 | 80 | 70 | 70 | 80 |
What are the average marks obtained by all the six students in Hindi?