Multiple Choice Questions on The population of a village increases by 20 at first and later it decreases by 10 to the existing po........... for CDS Exam Preparation

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Multiple Choice Questions

The population of a village increases by 20 at first and later it decreases by 10 to the existing po...........

Quantitative Aptitude (CDS) Percentage
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    The population of a village increases by 20% at first and later it decreases by 10% (to the existing population). What is the overall percentage change in the population?

     

    7% decrease
     

    Incorrect Answer

    9% decrease
     

    Incorrect Answer

    8% increase
     

    Correct Answer

    10% increase


     

    Incorrect Answer
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    Explanation:

    Let the population of village be 100.
    so 
    100×120/100 × 90×100
    =10800/100
    =108
    =8% increase

    By: bhavesh kumar singh
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