A) 18 sec |
B) 27 sec |
C) 35 sec |
D) 42 sec |
C) 35 sec |
The train will pass the tunnel when it moves a distance of 540 m + 160 m = 700 m.
Speed of 72 km/hr = \( \Large 72 \times \frac{5}{18} \)= 20 m/sec.
Time taken in passing the tunnel
= \( \Large \frac{700}{20} \) = 35 seconds.