Free GMAT SECTION 2: QUANTITATIVE Exam Braindumps (page: 47)

Page 47 of 182

The value of a “Tin-Rin” stock in the stock market decreased by 15% in the last two years.
The economic experts believe that the value of the stock will increase by 7% during the following year, which will make the value $440. What was the approximate price of the stock two years ago?

  1. $473.
  2. $464.
  3. $455.
  4. $445.
  5. $430.

Answer(s): A

Explanation:

Start from the top, after a 7% increase the price of the stock is $440. 440 are 107% of the price this year (440/107 x 100 = 411.215).
Two years ago the price was 15% higher, therefore (411.215 x 1.15) is approximately $473.



Which of the following expressions is equivalent to?

  1. X < 4.
  2. X > 4.
  3. X > -4.
  4. 4 < X < -4.
  5. –4 < X < 4.

Answer(s): E

Explanation:

An absolute value means that the sign of the variable is insignificant, therefore X can be between –4 and 4 and still he will fulfill the original equation.



Which of the following statements is equivalent to (8 + 2X < 18 – 6X < 23 + 2X)?

  1. 4/5 < X < 2.5.
  2. 4/5 < X < 8/5.
  3. -5/8 < X < 5/4.
  4. 2.5 < X < 3.5.
  5. 5 < 8X < 12.

Answer(s): C

Explanation:

Take the expression and simplify it: Take (8 + 2x) from each side to get: (0<10 – 8X<15). Substitute 10, -10<-8X<5. Divide all by (-8), 5/4 > X > -5/8. Therefore, the answer is C.



At the faculty of Aerospace Engineering, 312 students study Random-processing methods, 232 students study Scramjet rocket engines and 112 students study them both. If every student in the faculty has to study one of the two subjects, how many students are there in the faculty of Aerospace Engineering?

  1. 424.
  2. 428.
  3. 430.
  4. 432.
  5. 436.

Answer(s): D

Explanation:

Use the group formula.
Total = groupA + groupB – Both + Neither. Total = 312 + 232 – 112 + 0 = 432 students.



Page 47 of 182



Post your Comments and Discuss GMAT GMAT SECTION 2: QUANTITATIVE exam with other Community members:

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