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  3. JEE Main & Advanced

JEE Main & Advanced Sample Paper JEE Main Sample Paper-46

  • question_answer
    Lf a,b,c,d,e and f are in AP, then \[(e-c)\]is equal to

    A)  \[2\,(c-a)\]                  

    B) \[2\,(d-b)\]

    C)  \[2\,(f-d)\]                   

    D)  \[2(d-c)\]

    Correct Answer: D

    Solution :

     \[\because \] a, b, c, d, e f are in AP. So, \[b-a=c-b=d-c=e-d=f-e\] Now,    \[d-c=e-d\] \[\Rightarrow \]            \[e+c=2d\] \[\Rightarrow \]            \[e-c+2c=2d\] \[\Rightarrow \]            \[e-c=2(d-c)\]


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