D = 500 + 230 = 730
S = 44 * 5/18 = 12 mps
T = 730/12 = 61 sec
A train 500 meters long is running with a speed of 44 kmph. The time taken by it to cross a tunnel 230 meters long is?

a. 287 sec
b. 288 sec
c. 48 sec
d. 61 sec
e. 17 sec