ASVAB Arithmetic Reasoning Practice Test 181723 Results

Your Results Global Average
Questions 5 5
Correct 0 3.63
Score 0% 73%

Review

1

What is the greatest common factor of 76 and 24?

77% Answer Correctly
4
8
17
12

Solution

The factors of 76 are [1, 2, 4, 19, 38, 76] and the factors of 24 are [1, 2, 3, 4, 6, 8, 12, 24]. They share 3 factors [1, 2, 4] making 4 the greatest factor 76 and 24 have in common.


2

Which of the following is not an integer?

77% Answer Correctly

\({1 \over 2}\)

-1

0

1


Solution

An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.


3

Simplify \( \frac{40}{72} \).

77% Answer Correctly
\( \frac{5}{9} \)
\( \frac{4}{19} \)
\( \frac{5}{18} \)
\( \frac{2}{3} \)

Solution

To simplify this fraction, first find the greatest common factor between them. The factors of 40 are [1, 2, 4, 5, 8, 10, 20, 40] and the factors of 72 are [1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72]. They share 4 factors [1, 2, 4, 8] making 8 their greatest common factor (GCF).

Next, divide both numerator and denominator by the GCF:

\( \frac{40}{72} \) = \( \frac{\frac{40}{8}}{\frac{72}{8}} \) = \( \frac{5}{9} \)


4

What is \( \sqrt{\frac{81}{64}} \)?

70% Answer Correctly
\(\frac{1}{3}\)
1\(\frac{1}{8}\)
\(\frac{5}{9}\)
\(\frac{6}{7}\)

Solution

To take the square root of a fraction, break the fraction into two separate roots then calculate the square root of the numerator and denominator separately:

\( \sqrt{\frac{81}{64}} \)
\( \frac{\sqrt{81}}{\sqrt{64}} \)
\( \frac{\sqrt{9^2}}{\sqrt{8^2}} \)
\( \frac{9}{8} \)
1\(\frac{1}{8}\)


5

If \( \left|c + 5\right| \) - 8 = 3, which of these is a possible value for c?

62% Answer Correctly
-16
-9
9
-1

Solution

First, solve for \( \left|c + 5\right| \):

\( \left|c + 5\right| \) - 8 = 3
\( \left|c + 5\right| \) = 3 + 8
\( \left|c + 5\right| \) = 11

The value inside the absolute value brackets can be either positive or negative so (c + 5) must equal + 11 or -11 for \( \left|c + 5\right| \) to equal 11:

c + 5 = 11
c = 11 - 5
c = 6
c + 5 = -11
c = -11 - 5
c = -16

So, c = -16 or c = 6.