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The number so students after the students shifted to other stream, 
90 – x = 70 x = 20 So, x + 10 = 30 Hence, option b) is the correct answer.
Train B can cross a ‘d’ meter long platform in 16 seconds. The speed of train B is 40% less than the speed of train A. Train A can cross a pole in 8...
A high-speed Bullettrain takes 20 seconds to cross a platform. The length of the Bullettrain is 40% less than the length of the platform. If the Bullett...
Without stopping the speed of the train is 135 kmph, with stopping the speed of the train is 90 kmph.Find the stop time of the train?
Train ‘A’ travelling with a speed of 72 km/h can cross a pole in 18 seconds. If the length of train ‘B’ is 60% less than that of train ‘A’ a...
Train ‘A’ running with a speed of 90 km/h crosses a pole in 7 seconds. If the time taken by train ‘A’ to cross train ‘B’ running with a spee...
Two trains are running on parallel lines in the same direction at the speed of 76 km/h and 40 km/h respectively. The faster train crosses a man in the s...
How many seconds will a train 68 m in length, travelling at the rate of 40 km an hour, take to pass another train 92 m long, proceeding in the same dire...
Car 'X' travels for 4 hours to reach from point A to B. Car 'Y' travels 210 km to reach from point B to C in 3 hours. Distance travelled by car 'X' to c...
How many seconds will a train 66 m in length, travelling at the rate of 43 km an hour, take to pass another train 86 m long, proceeding in the same dire...
A person sees a train passing over 5 km long bridge. The length of the train is half that of bridge if the train clears the bridge in 6 mins. What is th...
