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If `a_1, a_2, a_3, ` be terms of an A.P. and `(a_1+a_2+.....+a_p)/(a_1+a_2+.....+a_q)=(p^2)/(q^2), p!=q ,t h e n(a_6)/(a_(21))` equals to (a).41/11`` (b). 7/2`` (c). 2/7`` (d). 11/41

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