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Question 52
A solid cube of side 12 cm is cut into eight smaller cubes of equal volume. The side of the small cube will be:
Solution
Volume of old cube =a³
⇒(12)³=1728 cm³
No.of cubes =8
Volume of old cube = 8* volume of 1 new cube
1728=8*a³
1728/8=a³
12/2=a
6 cm=a
D is correct choice.
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