Mathematics · Mensuration
A large cube is formed by melting three smaller solid cubes with sides measuring 3 cm, 4 cm, and 5 cm. What is the ratio of the total surface area of the three smaller cubes combined to the total surface area of the new larger cube?
- 124 : 19
- 225 : 18✓
- 321 : 13
- 45 : 9
Correct answer
25 : 18
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