Multiple Choice Questions on A man walks at a speed of 2 km hr and runs at a speed of 6 km hr How much time will the man require ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A man walks at a speed of 2 km hr and runs at a speed of 6 km hr How much time will the man require ...........

Quant (SSC) Time & distance
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    A man walks at a speed of 2 km/hr and runs at a speed of 6 km/hr. How much time will the man require to cover a distance of 20 1/2 km, if he completes half of the distance, i.e., (10 1/4) km on foot and the other half by running ?

    12.4 hrs

    Incorrect Answer

    11.9 hrs

    Correct Answer

    10.7 hrs

    Incorrect Answer

    9.9 hrs

    Incorrect Answer
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    Explanation:

    We know that
    Time = Distance/speed
    Required time = (10 1/4)/2 + (10 1/4)/6 
    = 41/8 + 41/6
    = 287/24 = 11.9 hours.

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