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SSC Selection Post 2024 PYQ — Question 61

SSC Selection Post - Graduation Level - 25 June 2024 - Shift 3 • Quantitative Aptitude • Q61

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If x + y = 18 and xy = 9, then the value of (xy+yx)({x\over y}+{y\over x}) will be:

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Correct answer: C

Explanation

The correct answer is option 3 i.e. 34.

x/y + y/x = (x2 + y2)/(xy)

= [(x + y)2 - 2xy]/(xy)

= [182 - 2(9)]/9

= 306/9

= 34