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    Question

    The speed of a boat in still water is 12 km/h and the

    speed of the current is 3 km/h. A person travels 135 kilometers in a boat in the upstream direction and returns to the starting point in the downstream direction. Find the time taken to cover the entire journey. type-ssc
    A 24h Correct Answer Incorrect Answer
    B 26h Correct Answer Incorrect Answer
    C 14h Correct Answer Incorrect Answer
    D 18h Correct Answer Incorrect Answer

    Solution

    Let the speed of boat in still water =B and speed of stream =S B=12km/h, S= 3km/h Speed of the boat in upstream =B-S=9km/h Speed of the of the boat in Downstream =B+S =15km/h ATQ- Total time = (135/9 +135/15) =15+9=24hours.

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