Admission Tests Admission Tests Certifications GMAT-QUANTITIVE Questions & Answers

• Question 321:

  Car A travels at three times the average speed of car B. Car A started to travel at 12:00 o'clock, car B started to travel at 16:00 o'clock. What is the speed of car B (in Km/h) if the total distance that both cars traveled until 18:00 was 1000 Km?

  A. 10.

  B. 25.

  C. 30.

  D. 38.

  E. 50.

  Correct Answer: E

  The speed of car B is X; the speed of car A is 3X.

  Car A traveled 3X x 6 hours = 18X Km.

  Car B traveled X x 2 hours = 2X Km.

  1000 = 20X ---> X = 50 Km/h.

• Question 322:

  Liz drove from point A to point B at 40 Km/h. On her way back she drove at 50 Km/h and therefore her way back lasted one hour less. What is the distance (in Km) between A and B?

  A. 150.

  B. 200.

  C. 600.

  D. 450.

  E. 500.

  Correct Answer: B

  The length of the road from A to B is 40 x X, where X is the time. The road back is: 50(X -1). The road is the same length so 40X = 50(X -1) -->; X = 5 hours. The distance is 200 Km.

• Question 323:

  In store A there are 10 pairs of pants for every 40 store B has. The price ratio between the pants in store B and the pants in store A is 3:4. If all the pants were sold in both places until the stock ran out, what is the ratio between the total amount stores A earned to the total amount store B earned?

  A. 3:16.

  B. 2:3.

  C. 1:3.

  D. 3:4.

  E. 2:5.

  Correct Answer: C

  Plug in numbers. Pants in store A cost $3 and in Store B $4. In Store A they sold 10 pairs so they earned $40, in store B they earned (40 x 3) $120. The ratio between the money earned is 1 to 3.

• Question 324:

  Chris has 100 gold bars and 60 bronze bars. After replacing 10 gold bars with bronze bars, he had an equal amount of gold and bronze bars. The price ratio between a gold and a bronze bar is?

  A. 2:3.

  B. 1:2.

  C. 1:3.

  D. 3:4.

  E. 2:5.

  Correct Answer: C

  After replacing 10 gold bars into bronze ones he had 90 of each thus 10 gold bars are worth 30 bronze ones, and this is their price ratio.

• Question 325:

  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.

  Correct Answer: E

  Pick a number for the red haired girls: 1.

  The number of brown haired girls is twice as much, thus 2. The number of blondes is three times as much,

  thus 6. The total number of girls is 9 and the brown ones are 2 out of 9.

• Question 326:

  The numbers of pizza slices that are sold in Joey's Pizza are only in quantities of 5 and 8 slices per customer. How many slices cannot be bought?

  A. 42.

  B. 33.

  C. 22.

  D. 20.

  E. 38.

  Correct Answer: C

  Check every answer.

  42 = 2 x 5 + 8 x 4.

  33 = 5 x 5 + 8.

  20 = 4 x 5.

  38 = 5 x 6 +8.

  The only a number which cannot be bought is 22.

• Question 327:

  Elizabeth is interested in dividing the rooms in the house among the family. Unfortunately, they do not divide equally. It turns out that in order for the rooms to be dividable, Elizabeth has to build two more rooms and kick out one of the family members. Which of the following can describe the number of the initial rooms in the house and the initial number of family members (in the order Rooms, family)?

  A. 20; 8.

  B. 30; 9.

  C. 15; 6.

  D. 10; 5.

  E. 22; 10.

  Correct Answer: B

  First we can eliminate answers where the number of rooms can be divided by the number of people, such as answer D.

  We are looking for an answer that if you subtract 1 from the right and add 2 to the left, the left number will

  be divisible by the right number.

  The only answer that fits this description is B. (30 +2)/(8) = 4.

• Question 328:

  Heather has 35 stamps in her stamp collection. The stamps are divided into three groups:

  old, new and foreign. The number of stamps in the old group is one half of the number of stamps in the

  new group and one seventh of the total amount of stamps. How many foreign stamps does Heather have?

  A. 21.

  B. 20.

  C. 15.

  D. 7.

  E. 18.

  Correct Answer: B

  If the number of old stamp is 1/7 of the total amount then there are 5 old stamps. Five old stamps are 1/2 of the new ones so there are 10 new stamps, therefore there are (35 -10 -5 = 20) foreign stamps.

• Question 329:

  Steve's monthly income is bigger by $4,000 than John's salary.

  If they both earned (together) $144,000 in one year, what is John's monthly income?

  A. $1,000.

  B. $2,000.

  C. $3,000.

  D. $4,000.

  E. $5,000.

  Correct Answer: D

  Steve every month: x + 4,000.

  Steve and John together every month: x + x + 4,000 = 2x +4,000. Steve and John in a year: 12(2x + 4,000)

  = 144,000 x = 4,000.

• Question 330:

  The value of a stock is X dollars. On Sunday the stock's value grew by half of its value, but on Monday its value dropped to a third of its new value. What is the stock's value at the end of Monday?

  A. X.

  B. X/2.

  C. 2X/3.

  D. X/3.

  E. X/4.

  Correct Answer: B

  Let's say that the original value of the stock was 100. After Sunday its value was 150, after Monday its value was 50 thus one half of its original value.