A train with a length of 110 metres is travelling at a speed of 60 kilometres per hour. What time will it pass a man jogging at 6 kmph in the opposite direction as the train?
A. 5 sec
B. 6 sec
C. 7 sec
D. 10 sec
Answer:B
A train with a length of 110 metres is travelling at a speed of 60 kilometres per hour. What time will it pass a man jogging at 6 kmph in the opposite direction as the train?
A. 5 sec B. 6 sec C. 7 sec D. 10 sec
Explanation: The train's speed in relation to the man is (60 + 6) km/hr = 66 km/hr.66 × 5/18 m/sec = 66 x 5/18 m/sec= 55/33 m/sec.The time it took to pass the man was 110 x 3/55 = 6 seconds.