Get Started with ixamBee
Start learning 50% faster. Sign in now
ATQ, Let the speed of the stream be 'x' km/hr Therefore, speed of the boat in still water = 'x' + 7x = '8x' km/hr According to the question, Downstream speed of the boat = 8x + x = (225/5) = 45 Or, 9x = 45 Or, x = (45/9) = 5 Therefore, upstream speed of the boat = 8x - x = 7x = 7 X 5 = 35 km/hr Therefore, required time taken = (84/35) = 2.4 hours
Train P travelling at 50 km/hr crosses another train Q, having three fourth of its length and travelling in opposite direction at 40 km/hr in 14 seconds...
A train 400 m long running at 108 km/hr takes 35 seconds to cross a bridge. The length of the bridge is
Train 'A' takes 36 seconds to pass a boy standing on a platform, moving at a speed of 15 m/sec. The speeds of trains 'A' and 'B' are in the ratio of 5:6...
A train of length 287 m, running at 80 km/h, crosses another train moving in the opposite direction at 37 km/h in 18 seconds. What is the length of the ...
A train takes 18 seconds to cross a platform and 6 seconds to cross a pole. If the length of the train is 70 metres less than the length of the platform...
A person sees a train passing over 3 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...
Time is taken by two trains running in opposite directions to cross a man standing on the platform in 31 seconds and 19 seconds respectively. It took 24...
Train ‘A’ running with a speed of 108 km/hr crosses a vertical pole in 8 seconds. Find the time taken by the train ‘A’ to cross a train ‘B’ ...
Train ‘A’ can cross a pole in 6 seconds and a 120 metre long platform in 12 seconds. If the ratio of length of train ‘A’ and train ‘B’ is 2:...
Two trains C and D started from point A and B respectively. Speed of train D is 21 km/hr more than that of train C. Total distance between point A and B...
