Exams › IBPS PO › Quantitative Aptitude

I. x²-12x-64=0. II. y²+20y-156=0. Find relation between x and y.

1. x > y
2. x < y
3. x = y
4. No relation in x and y or x = y

Correct answer: No relation in x and y or x = y

Solution

I: x=(12±20)/2→x=16 or -4. II: y=(-20±32)/2→y=6 or -26. Pairs: (16,6)x>y; (16,-26)x>y; (-4,6)x<y; (-4,-26)x>y. Mixed results → no definite relation.

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