Multiple Choice Questions on a man walks at a certain speed and reaches his destination which is 6 km in 1 hr 40 minutes If he ru........... for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

a man walks at a certain speed and reaches his destination which is 6 km in 1 hr 40 minutes If he ru...........

Quantitative Aptitude (RRB NTPC) Time & distance
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    a man walks at a certain speed and reaches his destination which is 6 km in 1 hr 40 minutes. If he runs the same distance in 1 hour 20 minutes what is the difference in speed?

    1 km/hr

    Incorrect Answer

    0.9 km/hr

    Correct Answer

    1.5 km/hr

    Incorrect Answer

    1.9 km/hr

    Incorrect Answer
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    Explanation:
    speed in 1st case = 6/5=3.6 kmph
    Speed in 2nd case =6/4=4.5 kmph
    ∴ Difference in speed = 4.5–3.6 = 0.9 kmph

    By: Barka Mirza
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