A) 900
B) 488
C) 512
D) 729
Correct Answer: C
Solution :
A \[10\times 10\times 10\] cube has 10 cubes of \[1\times 1\times 1\]cubes along its length, breadth and width each. If we remove a layer of \[1\times 1\times 1\] cubes (the smaller cubes) then the new cube will have following dimensions: Length\[=10-1-1=8;\]breadth\[=10-1-1=8\] and width\[=10-1-1=8.\] So the number of \[1\times 1\times 1\] cubes in this \[8\times 8\times 8\] cube \[=8\times 8\times 8=512.\]You need to login to perform this action.
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