Multiple Choice Questions on Find the LCM of 3 a ndash 1 2 a 1 2 a2 ndash 1 ........ for SSC CGL Exam Preparation

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Multiple Choice Questions

Find the LCM of 3 a ndash 1 2 a 1 2 a2 ndash 1 ........

Quantitative Aptitude (CGL) LCM, HCF
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    Find the LCM of 3(a – 1), 2 (a - 1)2 , (a2 – 1)

    (a + 1)2 (a + 1)

    Incorrect Answer

    (a - 1)2 (a + 1) 

    Correct Answer

    6 (a - 1) (a + 1)2 

    Incorrect Answer

    6 (a - 1)2 (a + 1)

    Incorrect Answer
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    Explanation:

    Solution: LCM of 3(a – 1), 2 (a - 1)2 , (a2 – 1) is 6 (a - 1)2 (a + 1) 

    By: Parvesh Mehta
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