Multiple Choice Questions on If 1 b 1 c 1 a 1 b then a b c form is ........ for CDS Exam Preparation

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Multiple Choice Questions

If 1 b 1 c 1 a 1 b then a b c form is ........

Quantitative Aptitude (CDS) Arithmetic progression
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    If 1/b -1/c =1/a -1/b then a,b,c form is?

    G.P
     

    Incorrect Answer

    A.P
     

    Incorrect Answer

    H.P
     

    Correct Answer

    none of these

     

    Incorrect Answer
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    Explanation:

     1/b -1/c =1/a -1/b
     2/b =1/a + 1/c
     1/a ,1/b ,1/c are in A.P
     then a,b,c are in H.P

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