GMAT-QUANTITIVE Online Practice Questions and Answers

Scott's average (arithmetic mean) golf score on his first four rounds was 78.What score does he need on his fifth round to drop his average score by 2 points?

A. 68

B. 72

C. 78

D. 88

E. 312

A 48 gallon solution of salt and water is 10% salt. How many gallons of water must be added to the solution in order to decrease the salt to 8% of the volume?

A. 8

B. 12

C. 13

D. 14

E. 16

What is the sum of all the even numbers bigger than (-10) and smaller than 12?

A. 2.

B. 10.

C. 0.

D. 8.

E. 4.

In Sam's hanger there are 23 boxes, 16 out of the boxes are filled with toys and the rest are filled with electrical appliances. 8 boxes are for sale, 5 of them are filled with toys. How many boxes with electrical appliances are in Sam's hanger that is not for sale?

A. 1.

B. 2.

C. 3.

D. 4.

E. 5.

A confectioner decides to sell all of his pastry due to the coming holiday. His pastry goods are equally divided among a group of 28 regular customers. If only 49 customers come to the bakery, each one will receive 6 less pastry goods. How much pastry does the confectioner needs to sell?

A. 392.

B. 412.

C. 432.

D. 502.

E. 522.

The perimeter of a circle is approximately 6.3 centimeters. The area of the same circle is A. which of the following is true?

A. 1 < A < 2.

B. 2 < A < 3.

C. 3 < A < 4.

D. 4 < A < 5.

E. A > 5.

If (B+A < B -A<; A -B), which of the following is correct?

A. A

B. B

C. B<0

D. 0

E. B>A>0.

In the Hillside summer camp there are 50 children. 90% of the children are boys and the rest are girls. The camp administrator decided to make the number of girls only 5% of the total number of children in the camp. How many more boys must she bring to make that happen?

A. 50.

B. 45.

C. 30.

D. 40.

E. 25.

Gina and Tina's average grade is 23 points higher than Tina's grade. What is the difference between their grades?

A. 23.

B. 46.

C. 16.

D. 11.5.

E. 15.

What is the value of x?

(1)

x + y = 6

(2)

2x -y = 9

A.

Statement (1), BY ITSELF, will suffice to solve the problem, but NOT statement (2) by itself.

B.

Statement (2), BY ITSELF, will suffice to solve the problem, but NOT statement (1) by itself.

C.

The problem can be solved using statement (1) and statement (2) TOGETHER, but not ONLY statement (1) or statement (2).

D.

The problem can be solved using EITHER statement (1) only or statement (2) only.

E.

The problem CANNOT be solved using statement (1) and statement (2) TOGETHER.

Is xy > 0?

(1)

x > 1

(2)

y < 0

A.

The problem can be solved using EITHER statement (1) only or statement (2) only.

B.

The problem CANNOT be solved using statement (1) and statement (2) TOGETHER.

C.

The problem can be solved using statement (1) and statement (2) TOGETHER, but not ONLY statement (1) or statement (2).

The junior soccer team is one of the best teams in the state of Alabama. The season is divided into two parts, each part is 4 months. In the first part of the season, the junior soccer team won half of their 32 games. How many games did the team win in the entire season?

(1)

In the second part of the season, the team lost 9 games, tied 6 games and won 18 games.

(2)

From the 32 games remaining the team won twice as much as she lost.

A.

Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.

B.

Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.

C.

Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.

D.

Either statement BY ITSELF is sufficient to answer the question.

E.

Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.

How much was the original price of a car, which was sold for $25,000?

(1)

The original price was more than half of the price it was sold. (2) The car has appreciated in value by 35% from its original value.

A.

Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.

B.

Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.

C.

Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.

D.

Either statement BY ITSELF is sufficient to answer the question.

E.

Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.

There are two bus routes that go through the chapel and the cemetery. For each route, the bus company may use one of two types of buses, a standard bus or a duplex bus. How many passengers total can travel in the duplex bus?

(1)

When both buses are used for the routes, as many as 90 passengers can travel from the chapel to the cemetery.

(2)

On Saturday, the busiest day of the week, two duplex buses are used for each of the routes and as many as 120 passengers can travel from the chapel to the cemetery.

A.

Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.

B.

Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.

C.

Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.

D.

Either statement BY ITSELF is sufficient to answer the question.

E.

Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.

What is the sum of two angles in a triangle?

-

One of the angles is equal to the sum of the other two.

-

One of the sides is equal to the other.

A.

Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.

B.

Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.

C.

Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.

D.

Either statement BY ITSELF is sufficient to answer the question.

E.

Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.