Multiple Choice Questions on Mr Ravi completes a certain journey by a car If he covered 40 of the distance at the speed of 20kmph........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Mr Ravi completes a certain journey by a car If he covered 40 of the distance at the speed of 20kmph...........

Quantitative Aptitude ( CCS) Time & distance
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    Mr. Ravi completes a certain journey by a car. If he covered 40% of the distance at the speed of 20kmph, 50% of the distance at 25 kmph and the remaining of the distance at 10 kmph, then what will be the speed?

    15 kmph

    Incorrect Answer

    20 kmph

    Correct Answer

    18 kmph

    Incorrect Answer

    14 kmph

    Incorrect Answer
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    Explanation:

    Solution: 
    Assume Total distance = 100 km.
    So speed = 100/[(40/20)+(50/25)+(10/10];
    speed = 100/[(2)+(2)+(1)];
    = 100/[5]
    = 20 kmph.

    By: Pranav Gupta
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