Time-Speed-Distance-Train

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A policeman starts to chase a thief. When the thief goes 10 steps the policeman moves 8 steps. 5 steps of the policeman are equal to 7 steps of the thief. The ratio of the speeds of the policeman and the thief is….
25 : 28
no
25 : 56
no
28 : 25
yes
56 : 25
no
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Two trains of equal length, running in opposite directions, pass a pole in 18 and 12 seconds. The trains will cross each other in…
14.4 seconds
yes
15.5 seconds
no
18.8 seconds
no
20.2 seconds
no
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A man completed a certain journey by a car. If he covered 30% of the distance at the speed of 20km/hr, 60% of the distance at 40km/hr and the remaining distance at 10km/hr; his average speed for the whole journey was.…
25 km/hr
yes
28 km/hr
no
30 km/hr
no
33 km/hr
no
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Two men start together from the some place in the same direction to go round a circular path. If one takes 10 minutes and the other takes 15 minutes to make one complete round they will meet after…
30 minutes
yes
33 minutes
no
40 minutes
no
45 minutes
no
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A man takes 6 hours 15 minutes in walking a distance and riding back to the starting place. He could walk both ways in 7 hours 45 minutes. The time taken by him to ride both ways, is…
4 hours
no
4 hours 30 minutes
no
4 hours 45 minutes
yes
5 hours
no
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A train covers a distance of 3584 km in 2 days 8 hours. If it covers 1440 km on the first day and 1608 km on the second day, by how much does the average speed of the train for the remaining part of the journey differ from that for the entire journey?
3 km/hour more
yes
3 km/hour less
no
4 km/hour more
no
5 km/hour less
no
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A moving train crosses a man standing on a platform and a bridge 300 metres long in 10 seconds and 25 seconds respectively. What will be the time taken by the train to cross a platform 200 metres long?
16 3 seconds
no
18 seconds
no
20 seconds
yes
22 seconds
no
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A and B are 20 km apart. A can walk at an average speed of 4 km/hour and B at 6 km/hr. If they start walking towards each other at 7 a.m., when they will meet?
8.00 a.m.
no
8.30 a.m.
no
9.00 a.m.
yes
10.00 a.m.
no
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A man rides at the rate of 18 km/hr, but stops for 6 minutes to change horses at the end of every 7th km. The time that he will take to cover a distance of 90 km is…
6 hrs
no
6 hrs 12 min
yes
6 hrs 18 min
no
6 hrs 24 min
no
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A policeman goes after a thief who has 100 metres start, if the policeman runs a kilometer in 8 min, and the thief a km in 10 min, the distance covered by thief before he is over-powered is…
350 m
no
400 m
yes
320 m
no
420 m
no
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