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Bunuel
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Is t^(1/2) an even integer? (1) t is equal to m^2. (2) m is an even in
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10 Dec 2017, 00:09
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88% (00:44) correct 13% (00:25) wrong based on 36 sessions

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Is \(\sqrt{t}\) an even integer?

(1) t is equal to m^2.
(2) m is an even integer.
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Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum

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Is t^(1/2) an even integer? (1) t is equal to m^2. (2) m is an even in
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10 Dec 2017, 02:46
Bunuel
Is \(\sqrt{t}\) an even integer?

(1) t is equal to m^2.
(2) m is an even integer.
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Statement 1: \(t=m^2 => \sqrt{t}=\sqrt{m^2}\). Nothing given about \(m\). Insufficient

Statement 2: nothing given about \(t\). Insufficient

Combining 1 & 2, as \(m\) is even so \(m^2\) is even, hence \(\sqrt{t}\)=even. Sufficient

Option C
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