A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream. A. 2 hours B. 3 hours C. 4 hours D. 5 hours

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Speed downstream = (13 + 4) km/hr = 17 km/hr. Time taken to travel 68 km downstream = 68 hrs = 4 hrs. 17
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C. 4 hrs
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Speed of the boat going downstream = (13 + 4) km/hr = 17 km/hr. Time taken to travel 68 km downstream = 68/17 = 4hrs
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The correct answer is C. 4 hours
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