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Class 8-9-10, JEE & NEET
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If each side of a cube is doubled then its volume
(a) is doubled
(b) becomes 4 times
(c) becomes 6 times
(d) becomes 8 times
(d) If each side of the cube is doubled, its volume becomes 8 times the original volume.
Let the original side be a units.
Then original volume = a cubic units
Now, new side = 2a units
Then new volume = (2a)sq units = 8 acubic units
Thus, the volume becomes 8 times the original volume.