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Let the capacity of the tank be ‘150’ litres {LCM (25, 30)} Efficiency of pipe ‘A’ = (150/25) = 6 litres/minute Efficiency of pipe ‘B’ = (150/30) = 5 litres/minute Quantity of water filled by pipe ‘A’ in 18 minutes = 18 × 6 = 108 litres Quantity of water to be filled = 150 – 108 = 42 litres Time taken by pipe ‘A’ and ‘B’ together to fill 42 litres of water = {42/(6 – 1)} = 42 minutes Total time taken = 18 + 42 = 60 minutes
1280 metres long train crosses a man who is moving in the same direction with a certain speed in 20 seconds. If the same train can cross a pole in 16 se...
The time taken by train A , whose length is 'd' meters to cross a bridge of 300 meters is equal to the time taken by train B of length 'd + 200' meters ...
A train crosses a bridge in 15 secs while it crosses a man standing on a platform in 8 secs. If the speed of train 108 km/hrs, then what will be the ti...
Two trains 160 metres and 140 metres in length are running towards each other on parallel tracks, one at the rate 52 km/hr and another at 38 km/hr. In h...
300 metre long train ‘A’ is running with a speed of 25.2 km/hr. Train ‘B’ which is 364 metre long is running with a speed of 90 km/h in opposite...
A train 270 metre long takes 36 sec to cross a man running at a speed of 4 km/hr in the direction opposite to that of train. What is the speed of the tr...
A person sees a train passing over 4 km long bridge. The length of the train is half that of bridge if the train clears the bridge in 4 mins. What is th...
Train ‘A’ running with a speed of 19.8 km/hr can cross a standing goods train of 4 times its length in 40 seconds. Find the time taken by 250 metres...
If the length of a train were halved, it would take 8 seconds to pass a pole. Given that the train's speed is 25 m/sec, determine the time required for ...
A train with a length of (p + 60) meters takes 30 seconds to cross a platform that is (q + 60) meters long while traveling at a speed of 20 meters per s...
