Multiple Choice Questions on A person travels from P to Q at a speed of 40 kmph and returns to Q by increasing his speed by 50 Wh........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A person travels from P to Q at a speed of 40 kmph and returns to Q by increasing his speed by 50 Wh...........

Quantitative Aptitude ( CCS) Time & distance
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    A person travels from P to Q at a speed of 40 kmph and returns to Q by increasing his speed by 50%. What is his average speed for both the trips?

    36 kmph

    Incorrect Answer

    45 kmph

    Incorrect Answer

    48 kmph

    Correct Answer

    50 kmph

    Incorrect Answer
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    Explanation:

    Speed while returning
    = 40 × 150/100 = 60 kmph
    Average speed = (2 × 40 × 60)/(40 + 60)
    = 4800/100 = 48 kmph

    By: Pranav Gupta
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