GMAT Problem Solving Practice Question #14
A word problem in mixtures and percentage. 700 level problem solving practice question.
Concept: The concentration of one of the elements in a mixture increases when we remove a part of the second element in a mixture of 2 quantities.
2 to 3 questions in the GMAT Math section test concepts in percentage. Questions usually appear as word problems. This question is an example of application of percentage to the concept of Mixtures.
Question
Fresh grapes contain 80% water by weight and raisins obtained by drying fresh grapes contain 25% water by weight. How many kg of fresh grapes are required to get 20 kg of raisins?
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