Multiple Choice Questions on The HCF and LCM of two numbers m and n are 6 and 210 respectively If m n 72 then 1 m 1 n is equal to........... for SSC CGL Exam Preparation

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Multiple Choice Questions

The HCF and LCM of two numbers m and n are 6 and 210 respectively If m n 72 then 1 m 1 n is equal to...........

Quantitative Aptitude (CGL) LCM, HCF
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    The HCF and LCM of two numbers m and n are 6 and 210 respectively. If m+n=72 then 1/m+ 1/n is equal to

    1/35 

    Incorrect Answer

    2/35 

    Correct Answer

    3/35 

    Incorrect Answer

    5/37

    Incorrect Answer
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    Explanation:

    Solution: (1/m) + (1/n) = (m+n)/mn
     (m+n)/mn = 72/ (6*210)
     (m+n)/mn= 2/25 

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