ASVAB Arithmetic Reasoning Practice Test 120232 Results

Your Results Global Average
Questions 5 5
Correct 0 3.05
Score 0% 61%

Review

1

Which of the following is not a prime number?

65% Answer Correctly

9

2

7

5


Solution

A prime number is an integer greater than 1 that has no factors other than 1 and itself. Examples of prime numbers include 2, 3, 5, 7, and 11.


2

Which of the following statements about exponents is false?

47% Answer Correctly

b1 = b

b1 = 1

all of these are false

b0 = 1


Solution

A number with an exponent (be) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b1 = b) and a base with an exponent of 0 equals 1 ( (b0 = 1).


3

Solve for \( \frac{5!}{2!} \)

67% Answer Correctly
\( \frac{1}{4} \)
60
\( \frac{1}{9} \)
\( \frac{1}{30} \)

Solution

A factorial is the product of an integer and all the positive integers below it. To solve a fraction featuring factorials, expand the factorials and cancel out like numbers:

\( \frac{5!}{2!} \)
\( \frac{5 \times 4 \times 3 \times 2 \times 1}{2 \times 1} \)
\( \frac{5 \times 4 \times 3}{1} \)
\( 5 \times 4 \times 3 \)
60


4

What is \( \frac{4}{6} \) ÷ \( \frac{4}{9} \)?

68% Answer Correctly
\(\frac{1}{30}\)
\(\frac{1}{4}\)
1\(\frac{1}{2}\)
\(\frac{2}{15}\)

Solution

To divide fractions, invert the second fraction and then multiply:

\( \frac{4}{6} \) ÷ \( \frac{4}{9} \) = \( \frac{4}{6} \) x \( \frac{9}{4} \)

To multiply fractions, multiply the numerators together and then multiply the denominators together:

\( \frac{4}{6} \) x \( \frac{9}{4} \) = \( \frac{4 x 9}{6 x 4} \) = \( \frac{36}{24} \) = 1\(\frac{1}{2}\)


5

What is \( \frac{-4x^8}{6x^2} \)?

60% Answer Correctly
-\(\frac{2}{3}\)x4
-\(\frac{2}{3}\)x-6
-\(\frac{2}{3}\)x6
-\(\frac{2}{3}\)x\(\frac{1}{4}\)

Solution

To divide terms with exponents, the base of both exponents must be the same. In this case they are so divide the coefficients and subtract the exponents:

\( \frac{-4x^8}{6x^2} \)
\( \frac{-4}{6} \) x(8 - 2)
-\(\frac{2}{3}\)x6