Answer:
1. Volume of the cube = width * length * height = 25 * 25 * 25 = 15,625 m³
2. Volume of the cube = width * length * height = 24 * 24 * 24 = 13,824 m³
3. Volume of the cube = width * length * height = 7 * 7 * 7 = 343 m³
4. Combined volume = volume cube 2 + volume cube 3 = 13,824 + 343 = 14,167 m³
5. 15, 625 - 14,167 = 1,458 more m³
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