Discussion
Find the missing number in the series:
1, 8, 27, 64, ?
Answer: C
Correct answer: 125
Each term is a perfect cube of consecutive whole numbers: \[ 1^3 = 1,\quad 2^3 = 8,\quad 3^3 = 27,\quad 4^3 = 64 \] so the next is \( 5^3 = \mathbf{125} \).
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