Comprehension Passage
Directions: Study the following table carefully to answer these questions.
The number of students studying 4 subjects from 4 institutes are given below.
| Name of institutes | Name of subjects | |||
| Physics | Chemistry | Math | IT | |
| A | 300 | 430 | 340 | 220 |
| B | 120 | 360 | 250 | 380 |
| C | 200 | 140 | 460 | 240 |
| D | 180 | 170 | 350 | 160 |
What is the average number of students studying Chemistry from all the Institutes together?
1
265
2
250
3
275
4
270