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Bunuel
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sefienolte
I too believe the answer to be E. If we don't know what the original level was then it doesn't matter that we're told by how much it decreased (which is what both statements essentially tell us). The original tub could have been half full, completely full, 15/16ths full etc. Thoughts?
Yes, your reasoning is correct.
We cannot tell anything without the original level.

The correct option is E
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