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A mixture of oil, water, and vinegar contains 10% oil. After all of the water evaporates, what percent of the mixture is oil?
(1) Before the water evaporated, the mixture exactly filled a one-liter bottle.
(2) Before the water evaporated, vinegar accounted for forty percent of the mixture.
[spoiler]OA=B[/spoiler]
Source: Manhattan GMAT
(1) Before the water evaporated, the mixture exactly filled a one-liter bottle.
(2) Before the water evaporated, vinegar accounted for forty percent of the mixture.
[spoiler]OA=B[/spoiler]
Source: Manhattan GMAT
