What is the value of $x$? Statement I: $2x=12$ Statement II: $x+4=10$ Choose from: A. Statement I alone is sufficient B. Statement II alone is sufficient C. Both together are sufficient, neither alone D. Either alone is sufficient E. Both together are insufficient
Practice this question from Chapter Mock 16: Data Sufficiency, with options and an explanation.
Question
What is the value of $x$?
Statement I: $2x=12$
Statement II: $x+4=10$
Choose from:
A. Statement I alone is sufficient
B. Statement II alone is sufficient
C. Both together are sufficient, neither alone
D. Either alone is sufficient
E. Both together are insufficient
Option A
A
Option B
B
Option C
C
Option D — Correct answer
D
Correct choice.
Option E
E
Explanation
Statement I gives $x=6$. Statement II also gives $x=6$. Each statement alone is sufficient, so the answer is D.