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A \(2 \times 2 \times 2\) cubic inch block of iron is melted and recast to form \(1 \times 1 \times 1\) cubic inch block

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by Vincen » Fri Jun 18, 2021 6:30 am
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A \(2 \times 2 \times 2\) cubic inch block of iron is melted and recast to form \(1 \times 1 \times 1\) cubic inch blocks. What is the percentage change in the total surface area of iron?

A) \(75\%\) decrease
B) \(25\%\) decrease
C) \(50\%\) increase
D) \(100\%\) increase
E) None of the above

Answer: D

Source: e-GMAT
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