MCQ
The two geometric means between the number $1$ and $64$ are
  • A
    $1$ and $64$
  • $4$ and $16$
  • C
    $2$ and $16$
  • D
    $8$ and $16$

Answer

Correct option: B.
$4$ and $16$
b
(b) Let $1,a, b, 64$

$ \Rightarrow {a^2} = b$ and ${b^2} = 64a$

$ \Rightarrow a = 4$ and $b = 16$.

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