GMAT-QUANTITIVE Online Practice Questions and Answers

If the least common multiple of two prime numbers x and y is 10, where x > y, then the value of 2x + y is

A. 7

B. 9

C. 11

D. 12

E. 21

Simba borrowed $12,000 from his brothers so he can buy a new sports car. If Simba returns 4.5% of that amount every 2 weeks, after how many months Simba wouldn't owe his brothers any more money?

A. 8.

B. 12.

C. 15.

D. 18.

E. 20.

The roof of an apartment building is rectangular and its length is 4 times longer than its width. If the area of the roof is 784 feet squared, what is the difference between the length and the width of the roof?

A. 38.

B. 40.

C. 42.

D. 44.

E. 46.

A bird is flying from an oak tree to a pine tree in a speed of 6 Km/h.

On her way back, she flew at a speed of 4 Km/h, thus, the trip lasted 4 hours more. What is the distance between the trees? (In Km)

A. 12.

B. 24.

C. 36.

D. 48.

E. 52.

Two trains are traveling on a collision course. If train A is traveling at a speed of 350 mph and train B is traveling 28% slower, how much time will it take the trains to collide if the initial distance between the two is 1505 miles?

A. Two hours and 30 minutes.

B. One hour and 10 minutes.

C. Two hours and 25 minutes.

D. Three hours and 15 minutes.

E. Four hours and 20 minutes.

In a hair cut competition, the number of blonde girls is three times bigger than the number of brown haired girls, and the number of brown haired girls is twice the number of red haired girls. Assuming that there is no other hair color, what is the proportion of the brown haired girls?

A. 2/3.

B. 4/9.

C. 1/3.

D. 5/9.

E. 2/9.

A Barman's train rails across an open track at 250 kilometers per hour. A regular passenger train travels at 68% of the Barman's train speed. If the two trains start moving from the same station at the same time, how much time longer will it take the passenger train than the Barman's to travel 850 kilometers?

A. 2 hours and 24 minutes.

B. 1 hour and 24 minutes.

C. 2 hours and 36 minutes.

D. 1 hour and 36 minutes.

E. 5 hours.

What is the total cost of six pencils and four notebooks?

(1)

Ten pencils and nine notebooks cost $11.50.

(2)

Twelve pencils and eight notebooks cost $11.00.

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.

If Peter spends $460 on three pairs of shoes, how much did the least expansive shoes cost?

(1)

The ratio between the most expansive shoes to the least expansive shoes is 3 to 1.

(2)

The ratio between the least expansive shoes to all the other ones is 1 to 5.

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 many days will it take two windows cleaners to clean the entire 30 stories building?

(1)

The first window cleaner can clean 15 windows in 10 minutes.

(2)

The second window cleaner can clean twice as much as the first cleaner in 15 minutes.

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.