Self Studies

Time, Speed and...

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  • Question 1
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    Train –A crosses a pole in 25 seconds and another Train B crosses a pole in 1 minute and 15 seconds. Length of train A is half length of train B. what is the respective ratio between the speed of train A and Train –B?

  • Question 2
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    An aeroplane flies with an average speed of 756 km/hr. A helicopter takes 48 hours to cover twice the distance covered by aeroplane in 9 hours. How much distance will the helicopter cover in 18 hours? (assuming that flights are non-stop and moving with uniform speed)

  • Question 3
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    A 280 meters long train travelling at a uniform speed, crosses a platform in 60 seconds and a man standing on the platform in 20 seconds. What is the length of the platform?

  • Question 4
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    A 320 meter long train moving with an average speed of 120 km/hr crosses a platform in 24 seconds. A man crosses the same platform in 4 minutes. What is the speed of man in meter/second?

  • Question 5
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     A man goes to Mumbai from Pune at a speed of 4 km/hr and returns to Pune at speed of 6km/hr. What is his average speed of the entire journey?

  • Question 6
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    A car covers first 39 km of its journey in 45 minutes and the remaining 25 km in 35 minutes. What is the average speed of the car?

  • Question 7
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    Rohit has to reach Mumbai which is 500 km away in 10 hours. His starting speed for 3 hours was 60 km/hr. For the next 200 km his speed was 50km/hr. By what speed he must travel now so as to reach Mumbai in decided time of 10 hours?

  • Question 8
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    Train –A crosses a stationary train –B in 35 seconds and a pole in 14 seconds with the same speed. The length of the train –A is 280 meters. What is the length of the stationary train –B?

  • Question 9
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    A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?

  • Question 10
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    A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is:

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