EA Data Sufficiency

Question 1

Is integer n divisible by 6? (1) n is divisible by 3. (2) n is divisible by 2.

Accepted Answer

Both statements together are sufficient, but neither alone.

Answer

Statement (1) alone is sufficient.

Answer

Statement (2) alone is sufficient.

Answer

Each statement alone is sufficient.

Question 2

What is the value of x + y? (1) x − y = 4. (2) 2x + 2y = 20.

Accepted Answer

Statement (2) alone is sufficient.

Answer

Statement (1) alone is sufficient.

Answer

Both statements together are sufficient, but neither alone.

Answer

Neither statement is sufficient.

Question 3

Is quadrilateral ABCD a rectangle? (1) All four angles are equal. (2) All four sides are equal.

Accepted Answer

Statement (1) alone is sufficient.

Answer

Statement (2) alone is sufficient.

Answer

Both statements together are sufficient, but neither alone.

Answer

Each statement alone is sufficient.

Question 4

A store sold 200 items. What fraction were defective? (1) 40 items were defective. (2) 160 items were non-defective.

Accepted Answer

Each statement alone is sufficient.

Answer

Statement (1) alone is sufficient.

Answer

Statement (2) alone is sufficient.

Answer

Both statements together are sufficient, but neither alone.

Question 5

What is the area of circle O? (1) The diameter of circle O is 10. (2) The circumference of circle O is 10π.

Accepted Answer

Each statement alone is sufficient.

Answer

Statement (1) alone is sufficient.

Answer

Statement (2) alone is sufficient.

Answer

Both statements together are sufficient, but neither alone.

Question 6

Is x > 0? (1) x² = 16. (2) x³ = 64.

Accepted Answer

Statement (2) alone is sufficient.

Answer

Statement (1) alone is sufficient.

Answer

Both statements together are sufficient, but neither alone.

Answer

Neither statement is sufficient.