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Let `a_(1),a_(2),a_(3),"........."` be terms are in AP, if `(a_(1)+a_(2)+"......"+a_(p))/(a_(1)+a_(2)+"......"+a_(q))=(p^(2))/(q^(2)),pneq " then " (a_(6))/(a_(21))` equals

A

`41/11`

B

`7/2`

C

`2/7`

D

`11/41`.

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