speed

GMAT Prep: Speed, Distance, Time Sample Problem 10
July 3, 2014  Author: Jashan
A train 200 metres long passes through a tunnel of 1.3 km. If speed of the train is 20 m/s then how long the train will take to come out of the tunnel completely?
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GMAT Prep: Speed, Distance, Time Sample Problem 9
 Author: Jashan
A car needs to cover 800 km of distance. It covers first 500 km in 4 hours at constant speed. What should be the speed of this car to cover next 300 km so that the average speed of this car is 80 km/h.
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GMAT Prep: Speed, Distance, Time Sample Problem 8
 Author: Jashan
On day 1, a car covers 300 km at 50 km/h. On day 2, same car travels at 60 km/h for 5 hours and on day 3, it covers 600 km in 9 hours at constant speed. What is the average speed of this car in these 3 days?
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