Correct option is D
The number of students at IIT Bombay and in IIT Madras = 2080 - (430 + 350 + 400)
= 2080 - 1180
= 900
Let the number of students at IIT Madras be 5a.
The number of students at IIT Bombay = 5a - 5a × 20%
= 4a
= 5a + 4a = 900
= 9a = 900
= a = 100
4a → 400
the number of students in IIT Bombay is 400.




