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Let the length of train 'A' = 'd' metresLet the speed of train 'A' = 'x' m/sAccording to the question,(d/x) = 19Or, d = 19xAlso, (d + 440) ÷ (x + 24) = 18.75Or, d + 440 = 18.75x + 450Or, d = 18.75x - 10So, 19x = 18.75x - 10So, x = 10 ÷ 0.25 = 40Therefore, length of train 'A' = 40 X 19 = 760 metres
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A boat can cover 72 km upstream and 180 km downstream in 12 hours. Speed of the stream is how much less than the speed of the boat in still water if the...
A boat can row downstream at 24 km and upstream 16 km in 8 hours. Then what is the velocity of the current ?
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