Question
Two boats X and Y start towards each other from two
places, 280 km apart. Speed of the boat X and Y in still water are 16 km/hr and 19 km/hr respectively. If X proceeds down and Y up the stream, they will meet after.Solution
Let the speed of the stream be x km/hr and both the boats meet after t hours According to the question, ⇒ (16 + x) t + (19 – x) t = 280 ⇒ 16t + 19t = 280 ⇒ 35t = 280 ⇒ t = 280/35 = 8 hours
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