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X and Y are two cylinders of the same...

`X` and `Y` are two cylinders of the same height. The base of `X` has diameter that is half the diameter of the base of `Y` . If the height of `X` is doubled, the volume of `X` becomes equal to the volume of `Y` (b) double the volume of `Y` (c) half the volume of `Y` (d) greater than the volume of `Y`

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