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The total cost of producing item \(Y\) is equal to the sum of item \(Y\)'s fixed cost and variable cost. If the variable cost of producing \(Y\) decreased by \(10\%\) in January, by what percent did the total cost of producing item \(Y\) change in January?
(1) The fixed cost of producing item \(Y\) increased by \(12\%\) in January.
(2) Before the changes in January, the fixed cost of producing item \(Y\) was 5 times the variable cost of producing item \(Y.\)
[spoiler]OA=C[/spoiler]
Source: Manhattan GMAT
(1) The fixed cost of producing item \(Y\) increased by \(12\%\) in January.
(2) Before the changes in January, the fixed cost of producing item \(Y\) was 5 times the variable cost of producing item \(Y.\)
[spoiler]OA=C[/spoiler]
Source: Manhattan GMAT
