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  1. If p, q, r are in Geometric Progression, then which is true among the following ?
    1. q =
      p + r
      2
    2. p² = qr
    3. q = √pr
    4. p
      		 =
      r
      rq
Correct Option: C

Using Basic concept of G.P., p, q, r are in geometric progression.

∴
q
=
r
 ⇒ q² = pr
pq

q = √pr


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