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Let the total capacity of tank be 550 units Efficiency of pipe ‘A’ = 550/22 = 25 units/hour Efficiency of pipe ‘B’ = 550/25 = 22 units/hour Tank filled in 2 hours = (25 – 22) = 3 units Therefore, tank filled in (2 × 27.5 = 55 hours) = 3 × 27.5 = 82.5 units Required percentage of tank filled = (82.5/550) × 100 = 15%
Without stopping the speed of the train is 130 kmph, with stopping the speed of the train is 65 kmph.Find the stop time of the train?
Two trains A and B, were proceeding in the same direction on parallel tracks at 25 km/hr and 79 km/hr respectively. A man noticed that it took exactly 1...
A train travels at a speed of 72.6 kn/hr. How many kilometres will it travel in 15 minutes?
A train 500 m long running at 90 km/hr takes 40 seconds to cross a bridge. The length of the bridge is
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A 160 m long train crosses another 280 m long train running in the opposite direction in 11 seconds. If the shorter train crosses a pole in 8 seconds, w...
A train, which is moving at the rate of 60 miles per hour, is brought to rest in 3 minutes with a uniform retardation, find this retardation, and also t...
720 metres long train crosses a man who is moving in the same direction with a certain speed, in 30 seconds. If the same train can cross a tree in 20 se...
Train A running at speed of 90 km/hr crosses a platform having twice the length of train in 12 sec. Train B whose length is 340m crosses same platform i...
Ratio of the lengths of two trains ‘X’ and ‘Y’ is 3:4 respectively and the ratio of time taken by them to cross a pole is 1:2 respectively. If s...