If \( a, b, c \) are in A.P. p, \( q, r \) are in H.P. and ap, bq, cr are in G.P., then \( \frac...

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If \( a, b, c \) are in A.P. p, \( q, r \) are in H.P. and ap, bq, cr are in G.P., then \( \frac{\mathrm{p}}{\mathrm{r}}+\frac{\mathrm{r}}{\mathrm{p}} \) is equal to
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