Let a(1) , a(2) , a(3) , "……………" be term...

Let `a_(1) , a_(2) , a_(3) , "……………"` be terms of an A.P. If `(a_(1) + a_(2) + "........" + a_(p ))/(a_(1) + a_(2) + "......." + a_(q)) = ( p ^(2))/( q^(2)) , p cancel(=)q`, then `( a_(6))/( a_(21))` equals `:`

`41//11`

`7 //2`

`2//7`

`11//41`

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