Problem Solving and Data Analysis Practice Questions | SAT Mathematics Exam

Problem Solving and Data Analysis

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A solution is mixed so that the ratio acid:water is \(3:7\). The technician adds \(40\%\) more acid than the original acid amount and then adds water so that the final total volume is \(25\%\) greater than the original total volume. By what percent did the water volume change?

Select one option.

Increases by \(10\%\)
Increases by \(18.6\%\) (approximately)
Increases by \(\dfrac{3}{14}\times 100\%\)
Increases by \(15\%\)
Decreases by \(18.6\%\) (approximately)

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