Question
A boat goes 12 km downstream in 2 hr and returns in 3
hr. Find speed of stream.Solution
ATQ, Downstream = 6 km/h, upstream = 4 km/h → stream = (6–4)/2 = 1 km/h
Train ‘C’ takes 15 seconds to cross a pole and 35 seconds to cross a 400 metre long bridgIf the length of the train had been 300 metres then find th...
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A 500-metre long train takes 10 seconds to cross a pole. If it takes 35 seconds to cross a bridge, then find the length of the bridge.(in km)
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A 250-meter-long train crosses a 150-meter-long train coming from the opposite direction in 20 seconds. If the speed of the first train is 45 km/h, then...
A train crosses a pole and a platform of length 300 metres in 9 seconds and 24 seconds, respectively. Find the length of train.
Train ‘A’ running with a speed of 126 km/hr crosses a vertical pole in 20 seconds. Find the approx. time taken by the train ‘A’ ...
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