## GMAT: Data Sufficiency

If x and y are distinct positive integers, what is the value of x^4 – y^4?
1) (y^2 + x^2)(y + x)(x – y) = 240
2) xy = yx and x > y
A) Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B) Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D) E ACH statement ALONE is sufficient.
E) Statement (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and
additional data are needed.

## GMAT: Data Sufficiency

If w, x, y, and z are the digits of the four-digit number N, a positive integer, what is the remainder
when N is divided by 9?
1) w + x + y + z = 13
2) N + 5 is divisible by 9
A) Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B) Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D) EACH statement ALONE is sufficient.
E) Statement (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and
additional data are needed.

## GMAT: Average Problem

The mean (average) of w, x, and y is z. Is z = w?

1. 1/2(x + y) = w
2. w = x = y

A. Statement 1 ALONE is sufficient but statement 2 alone is not sufficient.
B. Statement 2 ALONE is sufficient but statement 1 alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements 1 and 2 TOGETHER are NOT sufficient.

## GMAT: Ratio Question

A piece of wood is cut into three pieces that have lengths in the ratio

x : y : z = 1 : 2 : 3. What is the length x + y + z?
1. x + z = 16
2. x < y < z

A. Statement 1 ALONE is sufficient but statement 2 alone is not sufficient.
B. Statement 2 ALONE is sufficient but statement 1 alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements 1 and 2 TOGETHER are NOT sufficient.

## GMAT: Data Sufficiency

David has 26 coins in a jar, and all the coins are dimes and nickels. How many nickels are in the jar?

1. David spent part of the money on a soft drink.
2. The value of the coins is \$1.85.

A. Statement 1 ALONE is sufficient but statement 2 alone is not sufficient.
B. Statement 2 ALONE is sufficient but statement 1 alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient.|
D. EACH statement ALONE is sufficient.
E. Statements 1 and 2 TOGETHER are NOT sufficient.

## GMAT: Data Sufficiency

Here G, H, I, J, and K are consecutive whole numbers. When is G×H×I >12?

1. G greater than or equal to 2
2. G is odd

A. Statement 1 ALONE is sufficient but statement 2 alone is not sufficient.
B. Statement 2 ALONE is sufficient but statement 1 alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements 1 and 2 TOGETHER are NOT sufficient.

## GMAT Problem : Question of the day !!!

In the figure, if point C is the center of the circle and DB = 7, what is the length of DE?

(1) x = 60°
(2) DE || CA

A. Statement 1 ALONE is sufficient but statement 2 alone is not sufficient.
B. Statement 2 ALONE is sufficient but statement 1 alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements 1 and 2 TOGETHER are NOT sufficient.

## GMAT: Geometry Data Sufficiency

Is quadrilateral MNPQ a rectangle?

(1) At least two of the four angles are right angles.
(2) At least three of the four angles are right angles.

A. Statement 1 ALONE is sufficient but statement 2 alone is not sufficient.
B. Statement 2 ALONE is sufficient but statement 1 alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements 1 and 2 TOGETHER are NOT sufficient.

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