5
Q:

# Two stations A and B are 200 km apart on a straight track. 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) 12 a.m. B) 1 p.m. C) 11 a.m. D) 12 p.m.

Answer:   D) 12 p.m.

Explanation:

Assume both trains meet after 'p' hours after 7 a.m.
Distance covered by train starting from A in 'p' hours = 20p km
Distance covered by train starting from B in (p-1) hours = 25(p-1)
Total distance = 200
=> 20x + 25(x-1) = 200
=> 45x = 225
=> p= 5
Means, they meet after 5 hours after 7 am, ie, they meet at 12 p.m.

Q:

The ratio between the speeds of two trains is 2 : 5. If the first train runs 350 km in 5 h, then the difference between the speeds (in km/h) of both the trains is:

 A) 350 B) 105 C) 165 D) 180

Answer & Explanation Answer: B) 105

Explanation:
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2 294
Q:

Given that the lengths of the paths of a ball thrown with different speeds by two boy sare the same, if they take 0.6 seconds and 1 second respectively to cover the said length, what is the average speed of travel for the first throw, if the same for the second is 96 km/h?

 A) 160 km/h B) 200 km/h C) 150 km/h D) 100 km/h

Answer & Explanation Answer: A) 160 km/h

Explanation:
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1 325
Q:

A man divided his journey into three parts of distances of 18 km, 20 km and 27 km. He travelled the distances at the speeds of 6 km/h, 5 km/h and 9 kn/h,respectively. What was his average speed during the entire journey?

 A) 6.5 km/h B) 4.5 km/h C) 7.5 km/h D) 5.5 km/h

Answer & Explanation Answer: A) 6.5 km/h

Explanation:
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2 584
Q:

The distance between two railway stations is 1176 km. To cover this distance, an express train takes 5 hours less than a passenger train while the average speed of the passenger train is 70 km/h less than that of the express train. The time taken by the passenger train to complete the travel is:

 A) 12 hours B) 23 hours C) 17 hours D) 18 hours

Answer & Explanation Answer: A) 12 hours

Explanation:
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2 664
Q:

The distance between the places H and O is D units. The average speed that gets a person from H to O in a stipulated time is S units. He takes 20 minutes more time than usual if he travels at 60 km/h, and reaches 44 minutes early if he travels at 75 km/h. The sum of the numerical values of D and S is:

 A) 376 B) 358 C) 344 D) 384

Answer & Explanation Answer: D) 384

Explanation:
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0 416
Q:

A train that is running at the speed of 72 km/h crossesan electric pole in 36 seconds. The length of the train (in metres) is:

 A) 720 m B) 460 m C) 360 m D) 620 m

Answer & Explanation Answer: A) 720 m

Explanation:
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1 463
Q:

An athlete crosses a distance of 900 m in 10 minutes. What is his speed in km per hour?

 A) 5.4 km/h B) 6.9 km/h C) 3.6 km/h D) 4.8 km/h

Answer & Explanation Answer: A) 5.4 km/h

Explanation:
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2 3512
Q:

Rakesh walking at the speed of 8 km/h crosses a bridge in 30 minutes. What is the length of the bridge in kilometres?

 A) 5 km B) 2 km C) 3 km D) 4 km

Answer & Explanation Answer: D) 4 km

Explanation:
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2 557