In a increasing geometric series, the sum of the second and the sixth term is $\frac{25}{2}$ and the product of the third and fifth term is $25 .$ Then, the sum of $4^{\text {th }}, 6^{\text {th }}$ and $8^{\text {th }}$ terms is equal to

  • [JEE MAIN 2021]
  • A

    $30$

  • B

    $26$

  • C

    $35$

  • D

    $32$

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