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The correct answer is B
An Aeroplane flies along a Square field @ 75, 100, 150 and 200 km/hours respectively. Then find the Average speed of the Aeroplane during the whole jour...
A person travels 30 km at a speed of 15 km/h, another 20 km at 10 km/h, and the final 50 km at 25 km/h. What is the average speed for the entire journey?
A man is travelling at a speed of 60 km/h such that he will take 80 minutes to reach his destination. But after completing half the journey, the man too...
P can run 1km in 5 minutes 10 seconds and Q in 5 minutes 20 seconds. How many meters start can P give Q in a kilometer race so that the they both reach ...
A truck covers 376 km at a certain speed in 8 hours. How much time would a car take at an average speed of 13 km/h more than that of the speed of the tr...
A person crosses a 1600 m long street in 4 min. What is his speed (in km/h)?
A train covers a distance between stations Dehradun to Rudrapur in 90minutes. If the speed is reduced by 10 km/hr, it will cover the same distance in 9...
The speed of a boat in still water is 8 km/hr and speed of current is 3 km/hr. If time taken to cover a certain distance upstream is 11 hours, then how ...
Ratio of speeds of ‘A’ and ‘B’ is 5:7, respectively. If they participate in a 350-metre race and ‘B’ gives ‘A’, a head start of ‘m’ ...
A man walking at 4/5 of his regular speed, when a man covers a few distance in 3 hrs more than the time he takes to cover the same distance at his regul...