23
Q:

Two trains having equal lengths, take 10 seconds and 15 seconds respectively to cross a post. If the length of each train is 120 meters, in what time (in seconds) will they cross each other when traveling in opposite direction?

A) 10 B) 25
C) 12 D) 20

Answer:   C) 12



Explanation:

Speed of train 1 = 12010m/sec = 12 m/sec 

Speed of train 2 =12015m/sec  = 8 m/sec 

if they travel in opposite direction, relative speed = 12 + 8 = 20 m/sec

distance covered = 120 + 120 = 240 m

time = distance/speed = 240/20 = 12 sec

Q:

A train crosses a pole in 12 sec, and a bridge of length 170 m in 36 sec. Then the speed of the train is:

 

A) 10.8 km/h B) 30.75 km/h
C) 25.5 km/h D) 32.45 km/h
 
Answer & Explanation Answer: C) 25.5 km/h

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0 24
Q:

A train without stoppage travels with an average speed of 72 km/h and with stop page ,it travels with an average speed of 60 km/h. For how many minutes does the train stop on an average per hour?

 

A) 10 B) 6
C) 12 D) 8
 
Answer & Explanation Answer: A) 10

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0 45
Q:

A train takes  212 hours less for a journey of 300 km, if its speed is increased by 20 km/h from its usual speed. How much time will it take to cover a distance of 192 km at its usual speed?

 

A) 3 hours B) 2.4 hours
C) 4.8 hours D) 6 hours
 
Answer & Explanation Answer: C) 4.8 hours

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5 953
Q:

The distance between two stations, A and B, is 428 km.A train starts from station ‘A’ at 6:00 a.m. and moves towards station ‘B’ at an average speed of 48 km/h. Another train starts from station ‘B’ at 6:20 a.m. and moves towards station ‘A’ at an average speed of 55 km/h. At what time will the trains meet?

 

A) 10 : 20 a.m. B) 9 : 40 a.m.
C) 10 : 40 a.m. D) 10:00 a.m.
 
Answer & Explanation Answer: A) 10 : 20 a.m.

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1 627
Q:

The two trains leave Varanasi for Lucknow at 11:00 a.m. and at 11:30 a.m., respectively and travel at a speed of 110 km/h and 140 km/h, respectively. How many kilometers from Varanasi will both trains meet?

 

A) 255 1/3 km B) 238 2/3 km
C) 246 1/3 km D) 256 2/3 km
 
Answer & Explanation Answer: D) 256 2/3 km

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0 1196
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
 
Answer & Explanation Answer: A) 1/6

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1 436
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
 
Answer & Explanation Answer: B) 5

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0 381
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
 
Answer & Explanation Answer: D) 4 hours

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1 435