What is the value of $x$? Statement I: $x^2=36$. Statement II: $x$ is positive. Choose the standard data-sufficiency option.
Practice this question from Chapter Mock 16: Data Sufficiency, with options and an explanation.
Question
What is the value of $x$?
Statement I: $x^2=36$.
Statement II: $x$ is positive.
Choose the standard data-sufficiency option.
Option A
A
Option B
B
Option C — Correct answer
C
Correct choice.
Option D
D
Option E
E
Explanation
Statement I alone is insufficient because $x$ could be $6$ or $-6$. Statement II alone is insufficient. Together they give $x=6$. So the answer is C.