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Q: A metal cube of edge 18 cm is melted to form three smaller cubes, which are unequal in dimensions. If the edges of two smaller cubes are 9 cm and 15 cm, what is the surface area in (cm²) of the third smaller cube?
  • A. 1944
  • B. 864
  • C. 1728
  • D. 486
Correct Answer: Option B -
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Explanations:

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