ASVAB Arithmetic Reasoning Practice Test 131389 Results

Your Results Global Average
Questions 5 5
Correct 0 2.99
Score 0% 60%

Review

1

Which of the following statements about exponents is false?

47% Answer Correctly

b1 = 1

all of these are false

b1 = b

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).


2

The __________ is the greatest factor that divides two integers.

67% Answer Correctly

greatest common factor

greatest common multiple

least common multiple

absolute value


Solution

The greatest common factor (GCF) is the greatest factor that divides two integers.


3

On average, the center for a basketball team hits 30% of his shots while a guard on the same team hits 45% of his shots. If the guard takes 15 shots during a game, how many shots will the center have to take to score as many points as the guard assuming each shot is worth the same number of points?

42% Answer Correctly
20
10
17
23

Solution
If the guard hits 45% of his shots and takes 15 shots he'll make:

guard shots made = shots taken x \( \frac{\text{% made}}{100} \) = 15 x \( \frac{45}{100} \) = \( \frac{45 x 15}{100} \) = \( \frac{675}{100} \) = 6 shots

The center makes 30% of his shots so he'll have to take:

shots made = shots taken x \( \frac{\text{% made}}{100} \)
shots taken = \( \frac{\text{shots taken}}{\frac{\text{% made}}{100}} \)

to make as many shots as the guard. Plugging in values for the center gives us:

center shots taken = \( \frac{6}{\frac{30}{100}} \) = 6 x \( \frac{100}{30} \) = \( \frac{6 x 100}{30} \) = \( \frac{600}{30} \) = 20 shots

to make the same number of shots as the guard and thus score the same number of points.


4

What is -a7 x 2a3?

75% Answer Correctly
a3
-2a3
-2a21
-2a10

Solution

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

-a7 x 2a3
(-1 x 2)a(7 + 3)
-2a10


5

Which of these numbers is a factor of 48?

68% Answer Correctly
26
45
8
21

Solution

The factors of a number are all positive integers that divide evenly into the number. The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 48.