Correct option is D
Given
Dimensions of cuboid = 60 cm × 45 cm × 30 cm
Side of smaller cube = 5 cm
Formula Used
Number of cubes =
Solution
Volume of cuboid = 60 × 45 × 30
Volume of smaller cube = 5 × 5 × 5
Number of cubes =
Number of cubes = 12 × 9 × 6
Number of cubes = 648
Final Answer
So the correct answer is (d)