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Re: Given that X and Y are non–negative, what is the value of X? (1) 2X + [#permalink]
Asad wrote:
Given that \(X\) and \(Y\) are non–negative, what is the value of X?
(1) \(2X + 2Y ≤ 40 \)
(2) \(X – 2Y ≤ 20\)


Statement 1: x+y < 20 (even without complying EQUAL rules, this statement is valid)
Case 1: X=0; y=0
Case 2: x=1; y =0
Different values of x satisfy statement 1. Insufficient

Statement 2: x-2Y <20(even without complying EQUAL rules, this statement is valid)
Case 1: X=0; y=0
Case 2: x=1; y =0
Different values of x satisfy statement 2. Insufficient

Since SAME SET OF DIFFERENT VALUES OF X satisfies the both statements, no need to go for COMBINING.
X CAN HAVE DIFFERENT VALUES (no unique Value)
ANSWER E.
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Re: Given that X and Y are non–negative, what is the value of X? (1) 2X + [#permalink]
I believe this question would be of sub 600 level.
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Re: Given that X and Y are non–negative, what is the value of X? (1) 2X + [#permalink]
I haven't thought about plugging zeros!
Easy picking.

Posted from my mobile device
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Re: Given that X and Y are nonnegative, what is the value of X? (1) 2X + [#permalink]
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Re: Given that X and Y are nonnegative, what is the value of X? (1) 2X + [#permalink]
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