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46.
A train 110 meters long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
- A.5 sec
- C.7 sec
- B.6 sec
- D.10 sec
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| Speed of train relative to man = (60 + 6) km/hr = 66 km / hr | |||||||||||||||
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47.
Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is:
- A.50 m
- C.80 m
- B.72 m
- D.82 m
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| Let the length of each train be x metres | |||||||||||||||||
| Then, distance covered = 2x metres. | |||||||||||||||||
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48.
Two trains of equal lengths take 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train be 120 metres, in what time (in seconds) will they cross each other travelling in opposite direction?
- A.10
- C.15
- B.12
- D.20
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
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| Relative speed = (12 + 8) = m/sec = 20 m/sec. | |||||||||
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