Multiple Choice Questions on If a man reduces his speed to 2 3 he takes 1 hr more in walking a certain distance The time in hr to........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

If a man reduces his speed to 2 3 he takes 1 hr more in walking a certain distance The time in hr to...........

Quantitative Aptitude ( CCS) Time & distance
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    If a man reduces his speed to 2/3, he takes 1 hr more in walking a certain distance. The time (in hr) to cover the distance with his normal speed is

    2

    Correct Answer

    1

    Incorrect Answer

    3

    Incorrect Answer

    1.5

    Incorrect Answer
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    Explanation:

    Suppose man covers x km in y hours.
    His normal speed = x/y km/hr
    Reduced speed = 2x/3y km/hr.
    Time taken to cover x km = x/2x / 3y hrs
    = 3y/2 hrs.
    By hypothesis,
    = 3/2y = y + 1 
    or 
    y = 2hrs

    Hence, option 1 is the correct answer.

    By: Amit Kumar
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