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Doctors Medicines MCQs Q&A

  1. 4 cm
  2. 6 cm
  3. 8 cm
  4. 10 cm
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1 Answers

Option 2 : 6 cm

Calculation:

Let the edge of the new cube be a.

Volume of a new cube = sum of volume of melted cubes

⇒ a3 = 33 + 43 + 53

⇒ a3 = 27 + 64 + 125

⇒ a3 = 216 cm3

⇒ a = 6 cm

∴ The edge of the new cube formed is 6 cm.

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