one vs that for a copy

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one vs that for a copy

by confuse mind » Mon Aug 06, 2012 5:46 pm
The stereo system in your room is bigger than that in my room.
vs
The stereo system in your room is bigger than one in my room.

Are both the above sentences correct or which one one?
Source: — Sentence Correction |

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by Bill@VeritasPrep » Mon Aug 06, 2012 6:02 pm
To me, the second seems to imply that there is more than one stereo system in my room. The first sentence is more precise. I would prefer:

The stereo system in your room is bigger than the one in my room.
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