If \[\frac{1}{p+q},\ \frac{1}{r+p},\ \frac{1}{q+r}\] are in A.P., then [RPET 1995]

\[\frac{1}{p},\ \frac{1}{q},\ \frac{1}{r}\] are in A.P.

\[{{p}^{2}},\ {{q}^{2}},\ {{r}^{2}}\] are in A.P.

If \[\frac{1}{p+q},\ \frac{1}{r+p},\ \frac{1}{q+r}\] are in A.P., then

1.	If \[\frac{1}{p+q},\ \frac{1}{r+p},\ \frac{1}{q+r}\] are in A.P., then [RPET 1995]
A.	\[p,\ ,q,\ r\] are in A.P.
B.	\[{{p}^{2}},\ {{q}^{2}},\ {{r}^{2}}\] are in A.P.
C.	\[\frac{1}{p},\ \frac{1}{q},\ \frac{1}{r}\] are in A.P.
D.	None of these
Answer» C. \[\frac{1}{p},\ \frac{1}{q},\ \frac{1}{r}\] are in A.P.

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If \[\frac{1}{p+q},\ \frac{1}{r+p},\ \frac{1}{q+r}\] are in A.P., then [RPET 1995]

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