If r is negative and s is positive, which of the following must be negative?

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问题 If r is negative and s is positive, which of the following must be negative?

选项 A、|r|/s
B、|s|/r
C、r2+s
D、r2s2
E、

答案B

解析 Based on the rules of positive and negative numbers, the only answer choice that must be negative is B, since it takes a positive and divides it by a negative. All other manipulations end up positive.

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If r is negative and s is positive, which of the following must be negative?

GMAT QUANTITATIVE

GMAT

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