Multiple Choice Questions on Ashwin has to travel from one point to another point in a certain time Travelling at a speed of 6kmp........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Ashwin has to travel from one point to another point in a certain time Travelling at a speed of 6kmp...........

Quantitative Aptitude ( CCS) Time & distance
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    Ashwin has to travel from one point to another point in a certain time. Travelling at a speed of 6kmph he reaches 40m late and travelling at a speed of 8kmph he reaches 12 m earlier.What is the distance between this two points ?

     

    27km
     

    Incorrect Answer

    18km
     

    Incorrect Answer

    15km
     

    Incorrect Answer

    21km

    Correct Answer
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    Explanation:

    D/6 – 40/60 = d/8 +12/60
    d/6 – d/8 = 12/60+40/60
    (8-6)d/48 = 52/60
    2d/48 = 52/60
    D = 52*48/60*2 = 20.8 = 21km

    By: Sandeep Dubey
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