Question

    A boat takes 15 hours to travel

    360 km downstream. If it takes 18 hours to travel 288 km upstream, Determine the speed of the stream?
    A 12 km/h Correct Answer Incorrect Answer
    B 8 km/h Correct Answer Incorrect Answer
    C 4 km/h Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Downstream speed of the boat = 360 ÷ 15 = 24 km/h And, upstream speed of the boat = 288 ÷ 18 = 16 km/h Let the speed of the stream be 'p' km/h ATQ; 24 - 2p = 16 Or, 2p = 8 So, p = 4 So, speed of the stream = 4 km/h

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