Data Sufficiency — What is the value of $x$? (1) $x$ is a prime number…

Question

Data Sufficiency — What is the value of $x$?
(1) $x$ is a prime number.
(2) $x$ is even.

Accepted Answer

C. BOTH together are sufficient, but neither alone is

(1) alone: many primes. (2) alone: many evens. Together, the only even prime is 2, so x=2 — both needed: C.

Answer

Statement (1) ALONE is sufficient, but (2) alone is not

Answer

Statement (2) ALONE is sufficient, but (1) alone is not

Answer

EACH statement ALONE is sufficient

Data Sufficiency — What is the value of $x$? (1) $x$ is a prime number. (2) $x$ is even.