Multiple Choice Questions on If a b 2ab a b 3ab Find the value of b 2 ........ for CDS Exam Preparation

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Multiple Choice Questions

If a b 2ab a b 3ab Find the value of b 2 ........

Quantitative Aptitude (CDS) Simplification
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    If a+b =2ab ,a-b=3ab ,Find the value of b^2 ? 

    4/25

    Correct Answer

    3/25

    Incorrect Answer

    4/23
     

    Incorrect Answer

    3/23

    Incorrect Answer
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    Explanation:

    a+b =2ab ...  equation1  
    a-b=3ab  ...  equation2
    solving 1 and 2
    2a=5ab
    b=2/5
    b^2=4/25
       

    By: bhavesh kumar singh
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