If x is a rational number and y is an irrational number, then · ABC26GN0092
Subject: General Aptitude · Chapter: Number System
If $x$ is a rational number and $y$ is an irrational number, then
(a)both x + y and xy are necessarily rational
(b)both x + y and xy are necessarily irrational
(c)xy is necessarily irrational, but x + y can be either rational or irrational
(d)x + y is necessarily irrational, but xy can be either rational or irrational
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