Question

7. Two trains of length 270 m and 300 m travelling
at 54 kmph and 36 kmph respectively, enter a two
track tunnel 430 m long simultaneously on differ-
ent tracks and from the opposite directions. After
they cross each other, in how much time will the
tunnel be free of the trains?
(a) 25 second
(b) 30 second
(c) 33 second
(d) 41 second​

Answer 1

Step-by-step explanation:

The answer is 34 but you didn't write in your option