Exams › IBPS PO › Quantitative Aptitude
Quantity I: m>0, n<0 → mn<0. Quantity II: x<0, y<0 → xy>0. Quantity III: a>0, b<0 → ab<0. Which relation holds?
- a) Quantity I > Quantity II
- b) Quantity II > Quantity III
- c) Quantity I = Quantity II
- d) Cannot establish I vs II
Correct answer: b) Quantity II > Quantity III
Solution
QI=mn where m>0,n<0 → mn<0 (negative). QII=xy where x<0,y<0 → xy>0 (positive). QIII=ab where a>0,b<0 → ab<0 (negative). QII(positive) > QIII(negative). Only b) is always definitively true.
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