If \( (m+1)^{\text {th }} \) term, \( (n+1)^{\text {th }} \) term and \( (r+1)^{\text {th }} \) ....

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If \( (m+1)^{\text {th }} \) term, \( (n+1)^{\text {th }} \) term and \( (r+1)^{\text {th }} \) terms of
\( \mathrm{P} \)
an \( A P \) are in \( G P \) and \( m, n \) and \( r \) are in \( H P \), then the ratio of the common difference to the first term of \( A P \) is
(1) \( -1 / n \)
(2) \( 1 / n \)
(3) \( 2 / n \)
(4) \( -2 / n \)
.
(4)(8)(8) (9)


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