New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    A boat covers a distance of 270 km downstream in 6 hours.

    If the boat's speed in upstream direction is one-third of its downstream speed, calculate the time required to travel 180 km upstream.
    A 12 hrs Correct Answer Incorrect Answer
    B 18 hrs Correct Answer Incorrect Answer
    C 13 hrs Correct Answer Incorrect Answer
    D 10 hrs Correct Answer Incorrect Answer

    Solution

    ATQ,

    Downstream speed of the boat = 270 / 6 = 45 km/h

    Therefore, upstream speed of the boat = 45 / 3 = 15 km/h

    Required time taken = 180 / 15 = 12 hours

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