- A8
- B24
- C12
- D6
Step-by-Step Solution
The uncoloured cubes form the inner block left after removing one layer from each face: . (24 removes a layer from one end of each dimension only.)
Answer: A) 8
A soap bar 6 cm long, 4 cm wide and 3 cm high is coated in colour on all its faces and cut into 1 cm cubes. How many cubes have no colour?
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