Question

    Find the total distance covered by boat in each upstream

    and downstream in 4 hours if the speed of boat in still water and speed of current is 15 km/h and 4 km/h respectively?
    A 120 km Correct Answer Incorrect Answer
    B 180 km Correct Answer Incorrect Answer
    C 100 km Correct Answer Incorrect Answer
    D 116 km Correct Answer Incorrect Answer

    Solution

    Speed in upstream = 15 – 4 = 11 km/hr Speed in downstream = 15 + 4 = 19 km/hr Required total distance= (11 + 19) × 4 = 120 km

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