let a1,a2,a3,...........,be an AP such t...

let `a_1,a_2,a_3,...........,`be an `AP` such that `(a_1+a_2+a_3+...........+a_p)/(a_1+a_2+a_3+...........+a_q)=p^3/q^3`,`(p!=q)` then find `a_6/a_21=?`

`7//2`

`2//7`

`11//41`

`41//11`

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