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GMAT Math - Ratio, Proportion and Variance

Questions Archive
A.P, G.P
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GMAT Test Syllabus

February 17, 2004: In what ratio should a 20% methyl alcohol solution be mixed with a 50% methyl alcohol solution so that the resultant solution has 40% methyl alcohol in it? Answer »

March 18, 2004 : A, B and C, each of them working alone can complete a job in 6, 8 and 12 days respectively. If all three of them work together to complete a job and earn $ 2340, what ill be C’s share of the earnings? Answer »

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