- Home
- General Aptitude
- Problems on Trains
21.
A train moves with a speed of 108 kmph. Its speed in meters per second is:
- A.10.8
- C.30
- B.18
- D.38.8
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
|
||||||||||
22.
Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a.m. and travels towards B at 20 kmph. Another train starts from B at 8 a.m. and travels towards A at a speed of 25 kmph. At what time will they meet?
- A.9 a.m.
- C.10.30 a.m.
- B.10 a.m.
- D.11 a.m.
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| Suppose they meet x hours after 7 a.m. | |||||||||
| Distance covered by A in x hours = 20x km. | |||||||||
| Distance covered by B in (x -1) hours = 25 (x – 1) km. | |||||||||
|
|||||||||
| So, they meet at 10 a.m. | |||||||||
23.
Two goods train each 500 m long, are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one.
- A.12 sec
- C.48 sec
- B.24 sec
- D.60 sec
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
|
|||||||||||||||
| Distance covered = (500 + 500) m = 1000 m. | |||||||||||||||
|
|||||||||||||||
24.
A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. The speed of the second train is
- A.48 km/hr
- C.66 km/hr
- B.54 km/hr
- D.82 km/hr
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| Let the speed of the second train be x km/hr. | |||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||
| Distance covered = (108 + 112) = 220 m. | |||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||
25.
The length of a train and that of a platform are equal. If with a speed of 90 km/hr, the train crosses the platform in one minute, then the length of the train (in metres) is:
- A.500
- C.750
- B.600
- D.900
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
|
||||||||||||||
| Let the length of the train and that of the platform be x metres. | ||||||||||||||
|
||||||||||||||
|
|
||||||||||||||||||||||||||||
