If p-1 , q-1 and r-1 are in A.P., then :

CBSE Class 10 Maths PYQ · Arithmetic Progressions · Basics of AP, CD, Make, find x · 1 Mark · March 2026 · Basic

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321 Mark · March 2026 · Basic
If $p-1$, $q-1$ and $r-1$ are in A.P., then :
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Ans. (D) $2p$, $2q$ and $2r$ are also in A.P.
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