Is xy > 0? GMAT Explanation
Is xy > 0? GMAT Explanation Is xy > 0? (1) x – y > -2 (2) x – 2y < -6 Correct Answer: C
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If the operation is defined for all integers a and b by
If the operation is defined for all integers a and b by a@b = a + b – ab, which of the following statements must be true for all integers a, b and c? GMAT Explanation If the operation is defined for all integers a and b by a@b = a + b – ab,
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Lines n and p lie in the xy-plane. Is the slope of line n less than the slope of line p?
Lines n and p lie in the xy-plane. Is the slope of line n less than the slope of line p? (1) Lines n and p intersect at the point (5 , 1). (2) The y-intercept of line n is greater than the y-intercept of line p. A. Statement (1) ALONE is sufficient, but statement
If ax + b = 0, is x > 0
If ax + b = 0, is x > 0? (1) a + b > 0 (2) a – b > 0 A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH statements TOGETHER are sufficient, but
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Of the students who eat in a certain cafeteria, each student either likes or dislikes lima beans and each student either likes or dislikes brussels sprouts. Of these students, 2/3 dislike lima beans; and of those who dislike lima beans, 3/5 also dislike brussels sprouts. How many of the students like brussels sprouts but dislike lima beans?
Of the students who eat in a certain cafeteria, each student either likes or dislikes lima beans and each student either likes or dislikes brussels sprouts. Of these students, 2/3 dislike lima beans; and of those who dislike lima beans, 3/5 also dislike brussels sprouts. How many of the students like brussels sprouts but dislike