Discussion
How many smaller cubes can be obtained from the larger cube ?
Answer: D
The larger cube gives 125 smaller cubes.
With 5 small cubes along each edge, the total is:
\[ 5^{3} = 125 \]
Equivalently, the volume ratio is \(15^{3} / 3^{3} = 3375 / 27 = 125\). 25 counts only one layer (\(5^{2}\)), and 75 counts three layers.
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