alleryIf the edge of a cube is halved, its volume reduces to how many times the original volume?
A1/3
B1/4
C1/8
D1/2
Answer & Solution
Correct answer: C. 1/8
1. Volume of a cube = (edge)^3.
2. Halving the edge gives volume = (edge/2)^3 = (edge)^3 / 8.
3. So the new volume is 1/8 of the original.
_Source: RRB Group D CEN-02/2018 PYQ, Q.12._
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