Multiple Choice Questions on The LCM of 16 x 2 and x 2 x 6 is ........ for CDS Exam Preparation

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Multiple Choice Questions

The LCM of 16 x 2 and x 2 x 6 is ........

Quantitative Aptitude (CDS) Number System
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    The LCM of (16-x^2) and (x^2-x-6) is? 

     

    4(4-x^2) (x+3) 
     

    Incorrect Answer

    (x-3) (x+3) (4-x^2) 
     

    Incorrect Answer

    (4-x^2) (x-3) 
     

    Incorrect Answer

    (16-x^2) (x^2-x-6) 

    Correct Answer
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    Explanation:

    solving these equations seperately we get
    (16-x^2) =(4-x) (4+x) 
    (X^2-x-6) =(x-3) (x+2)
    since nothing is common in both equations so   
    LCM is (16-x^2) (x^2-x-6) 

    By: bhavesh kumar singh
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