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2003 AMC 12A Question 3

AMC12 · 2003 AMC 12A

Question 3

A solid box is $15$ cm by $10$ cm by $8$ cm. A new solid is formed by removing a cube $3$ cm on a side from each corner of this box. What percent of the original volume is removed?
  1. $4.5$
  2. $9$
  3. $12$
  4. $18$
  5. $24$