What number will replace the ?
$1, 4, 16, 64, ?$

81

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100

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256

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196

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Solution

The correct option is A $256$
Each term is multiplied by $1 \times 4 = 4$
$4 \times 4 = 16$
$16 \times 4 = 64$
$64 \times 4 = 256$
Hence, option 'C' is correct.

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