A perfect cube is an integer whose cube root is an integer. For example, 27, 64 and 125 are perfect cubes. If p and q are perfect cubes, which of the following will not necessarily be a perfect cube? A. 8p B. pq C. pq + 27 D. -p E. (p – q)6
Full Story »GMAT: Problem Solving
GMAT: Problem Solving
A certain animal in the zoo has consumed 39 pounds of food in six days. If it continues to eat at the same rate, in how many more days will its total consumption be 91 pounds? A. 12 B. 11 C. 10 D. 9 E. 8
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How many hours were Fran and Fred away from home? They left at 9.30 am on Monday and returned at 9.30pm on Friday. Their home was empty for exactly four days. A. statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question B. statement 2 alone is sufficient, [...]
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Is the area of circle C greater than the area of square S? The diameter of C is equal to the diagonal of square S. The perimeter of S is less than the circumference of C. A. statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question B. [...]
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If the average age of three people is 21 years, is the youngest older than 13? The oldest is 25. One person is 24. A. statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question B. statement 2 alone is sufficient, but statement 1 alone is not sufficient [...]
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How many people are standing in the queue at the counter? If four more people join the queue, the number in the queue will be more than 15. If three people give up and leave the queue, the number remaining will be less than 10. A. statement 1 alone is sufficient, but statement 2 [...]
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Yesterday it rained in Baronia. Did it rain in Dukia? Whenever it rains in Dukia, it also rains in Baronia. If it does not rain in Dukia, it does not rain in Baronia. A. statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question B. statement 2 alone [...]
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