GMAT Question of the Day – Data Sufficiency – Ratio/Weighted Average The ratio of the number of students in the math department, history department, and science department is 3 to 7 to 10 respectively. Is the average height of students from all of the departments less than 60 inches? (1) The sum of the heights of all […]
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GMAT Question of the Day – Problem Solving – Probability Katie has a bag of marbles which contains 3 blue marbles, 3 red marbles, and 2 yellow marbles. If she arranges her marbles in a line what is the probability that the marbles will be grouped by color? A. 3/280 B. 3/560 C. 5/632 D. 7/632 E. 7/635
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GMAT Question of the Day – Problem Solving – Work Tank A contains X gallons of water while Tank B contains Y gallons. Tank A has water removed at a rate of K gallons per hour and Tank B has water added at a rate of M gallons per hour. Assuming that both tanks still
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GMAT Question of the Day – Problem Solving – Remainder x and y are positive integers. When x is divided by y the remainder is 12. x/y = 78.24. What is the value of y? A. 50 B. 52 C. 58 D. 62 E. 66 [spoiler]A.[/spoiler] GMAT Question of the Day Solution If you know
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GMAT Question of the Day – Data Sufficiency – Ratio The ratio of the number of employees at company’s K, M, and Z is 2 to 6 to 7. Is the average salary at these companies less than $50,000? 1. The total earnings at all three companies is less than $85,000,000 2. Company K has 400
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