GMAT Section 2 Quantitative

GMAT Section 2 Quantitative practice questions, page 7 of 29, with answer review and explanations.

Question 31

From the starting point in a boat race, one competitor started to sail north at a speed of 1.6 Km/h, the other competitor started to sail west at a speed of 1.2 Km/h. What is the distance in Km between the two competitors after 5 hours?

  1. 10.
  2. 12.
  3. 12.5.
  4. 14.
  5. 15.4.

Question 32

George can fill Q cans of paint in 3 minutes. If there are R cans of paint in one gallon, how many gallons can George fill in 45 minutes?

  1. 30R/Q.
  2. 15R/Q.
  3. 30Q/R.
  4. 5Q/R.
  5. 15Q/R.

Question 33

If (4 # 2 = 14) and (2 # 3 = 6), what can replace (a # b)?

  1. a b.
  2. (a+3) b
  3. a2 – b.
  4. ab – 2.
  5. ba + 1.

Question 34

In a rectangular coordinate system, what is the square root of the area of a trapezoid whose vertices have the coordinates (2, -2), (2, 3), (20, 2), (20, -2)?

  1. 7.5
  2. 9
  3. 10.22
  4. 12.25
  5. 14

Question 35

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

  1. 7
  2. 9
  3. 11
  4. 12
  5. 21