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Let, the speeds of boat ‘A’ and boat ‘B’, in still water and the speed of the current be 7x km/hr, 5x km/hr and 2x km/hr, respectively. According to the question, (6D – 30)/(7x + 2x) = (D + 60)/(5x – 2x) Or, 18D – 90 = 9D + 540 Or, 9D = 630 Or, D = 70
A train crosses a stationary tree in 13 seconds and a 150-meter-long bridge in 18 seconds. If a dog is walking in the same direct...
Train P travelling at 52 km/hr crosses another train Q, having three fourth of its length and travelling in opposite direction at 20 km/hr in 21 seconds...
A person sees a train passing over 6 km long bridge. The length of the train is half that of bridge if the train clears the bridge in 5 mins. What is th...
A train has to cover a distance of 90 km in 15 hours. If it covers half the journey in 4/5 th of the time, the speed to cover remaining distance in the ...
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...
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 8 mins. What is th...
A train covers a certain distance at a speed of 40 km/h and the next same distance with a speed of 70 km/h and the next same distance with a speed of 12...
A train 'D' departed from Lucknow at 7:00 PM, traveling at a speed of 66 km/h, and reached Kolkata. Meanwhile, Train 'C' left Kol...
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...
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?
