45
Q:

# A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is ?

 A) 45 kmph B) 25 kmph C) 30 kmph D) 50 kmph

Explanation:

Speed of the train relative to man = (125/10) m/sec = (25/2) m/sec.
[(25/2) x (18/5)] km/hr = 45 km/hr.
Let the speed of the train be 'S' km/hr.
Then, relative speed = (S - 5) km/hr.
S - 5 = 45 => S = 50 km/hr.

Q:

The speed of a train is 72 km/hr and its length is 200 meters. What will be the time (in minutes) taken by the train to cross a pole?

 A) 1/6 B) 3/5 C) 5 D) 10

Explanation:

1 458
Q:

Two stations L and M are 180 km apart from each other. A train leaves from L to M and simultaneously another train leaves from M to L. Both trains meet after 9 hours. If the speed of the first train is 10 km/hr more than the second train, then what is the speed (in km/hr) of the slower train?

 A) 9 B) 5 C) 12 D) 15

Explanation:

2 458
Q:

X and Y are two stations which are 280 km apart. A train starts at a certain time from X and travels towards Y at 60 km/h. After 2 hours, another train starts from Y and travels towards X at 20 km/h. After how many hours does the train leaving from X meets the train which left from Y?

 A) 2 hours B) 6 hours C) 3 hours D) 4 hours

Explanation:

1 387
Q:

A train travelling at constant speed crosses two persons walking in the same direction in 8 seconds and 8.4 seconds respectively. The first person was walking at the speed of 4.5 km/hr while the second was walking at the speed of 6 km/hr. What was the speed of the train in km/hr?

 A) 42 B) 40 C) 32 D) 36

Explanation:

0 410
Q:

Train X travelling at 60 km/h overtakes another train Y, 225 m long, and completely passes it in 72 seconds. If the trains had been going in opposite directions, they would have passed each other in 18 seconds. The length (in m) of X and the speed (in km/h) of Y are, respectively:

 A) 245 and 54 B) 255 and 40 C) 255 and 36 D) 245 and 45

Explanation:

0 404
Q:

A train moving with a uniform speed covers 338 m in 50 s. What is its speed?

 A) 5.76 m/s B) 7.76 m/s C) 6.76 m/s D) 4.76 m/s

Explanation:

0 382
Q:

A train travelling at constant speed crosses two persons walking in the same direction in 4 seconds and 4.2 seconds, respectively. The first person was walking at the speed of 4.5 kmph while the second was walking at the speed of 6 kmph. What was the speed of the train in kmph?

 A) 42 B) 36 C) 40 D) 32

Explanation:

1 367
Q:

Two trains, one 153 m long and the other 127 m long; coming from opposite directions crossed each other in 7.2 seconds. The combined speed of the two trains every hour would then be:

 A) 140 km/h B) 105 km/h C) 70 km/h D) 280 km/h