QUESTION: 41

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?

30R/Q.
15R/Q.
30Q/R.
5Q/R.
15Q/R.

Answer(s): E

Explanation:

George can fill Q/3 cans of paint in one minute □ There are R cans in one gallon, so R/(Q/3) = 3R/QIs the time it takes George to fill one gallon (in minutes). In 45 minutes George can fill up 45/ (3R/Q) = 15Q/R. The correct answer is E.

Reveal Solution Next Question

QUESTION: 42

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

a b.
(a+3) b
a2 – b.
ab – 2.
ba + 1.

Answer(s): D

Explanation:

Plug in the answers.

A- (4 # 2) = 8. The answer should be 14.
B- (2 # 3) = (2 + 3)3 = 15. The answer should be 6.
C- (2 # 3) = (22 – 3) = 1. The answer should be 6.
D- (4 # 2) = (42 – 2) = 14. This is the right answer; check (2 # 3) also. The correct answer is D.

Reveal Solution Next Question

QUESTION: 43

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)?

7.5
9
10.22
12.25
14

Answer(s): B

Explanation:

Draw the x and y-axes, then plot the points and connect them. The area of a trapezoid is (base1 + base2) x (height) / 2.
Base1 = 5, base2 = 4, height = 18 thus the area is 9 x 9 = 81. The answer to the question is the square root of 81, meaning 9. The correct answer is B.

Reveal Solution Next Question

QUESTION: 44

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

7
9
11
12
21

Answer(s): D

Explanation:

The only prime numbers that satisfy this condition are 2 and 5. Since x > y, x = 5 and y = 2. Therefore, by substitution, 2 (5) + 2 = 10 + 2 = 12.

Reveal Solution Next Question

Free GMAT SECTION 2: QUANTITATIVE Exam Braindumps (page: 12)

QUESTION: 41

Explanation:

QUESTION: 42

Explanation:

QUESTION: 43

Explanation:

QUESTION: 44

Explanation: