Given that \(ab<0\) and \(a>b,\) which of the following must be true?

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B

C

D

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Given that \(ab<0\) and \(a>b,\) which of the following must be true?

I. \(a>0\)

II. \(b>0\)

III. \(\dfrac1{a}>\dfrac1{b}\)

A. I only
B. II Only
C. I and III Only
D. II and III Only
E. I, II and III

Answer: C

Source: Manhattan GMAT
Source: — Problem Solving |