Question

    Find the total distance covered by boat in each upstream

    and downstream in 6 hours if the speed of boat in still water and speed of current is 15 km/h and 5 km/h respectively?
    A 120 km Correct Answer Incorrect Answer
    B 116 km Correct Answer Incorrect Answer
    C 150 km Correct Answer Incorrect Answer
    D 180 km Correct Answer Incorrect Answer

    Solution

    Speed in upstream = 15 – 5 = 10 km/hr Speed in downstream = 15 + 5 = 20 km/hr Required total distance= (10 + 20) × 6 = 180 km

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