ASVAB Arithmetic Reasoning Practice Test 38801 Results

Your Results Global Average
Questions 5 5
Correct 0 3.17
Score 0% 63%

Review

1

If \( \left|x + 2\right| \) - 1 = 2, which of these is a possible value for x?

62% Answer Correctly
4
-15
-6
1

Solution

First, solve for \( \left|x + 2\right| \):

\( \left|x + 2\right| \) - 1 = 2
\( \left|x + 2\right| \) = 2 + 1
\( \left|x + 2\right| \) = 3

The value inside the absolute value brackets can be either positive or negative so (x + 2) must equal + 3 or -3 for \( \left|x + 2\right| \) to equal 3:

x + 2 = 3
x = 3 - 2
x = 1
x + 2 = -3
x = -3 - 2
x = -5

So, x = -5 or x = 1.


2

What is 3y6 x 2y6?

75% Answer Correctly
6y6
5y12
6y36
6y12

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:

3y6 x 2y6
(3 x 2)y(6 + 6)
6y12


3

Which of these numbers is a factor of 32?

68% Answer Correctly
18
4
32
16

Solution

The factors of a number are all positive integers that divide evenly into the number. The factors of 32 are 1, 2, 4, 8, 16, 32.


4

Which of the following is an improper fraction?

70% Answer Correctly

\({7 \over 5} \)

\({a \over 5} \)

\(1 {2 \over 5} \)

\({2 \over 5} \)


Solution

A rational number (or fraction) is represented as a ratio between two integers, a and b, and has the form \({a \over b}\) where a is the numerator and b is the denominator. An improper fraction (\({5 \over 3} \)) has a numerator with a greater absolute value than the denominator and can be converted into a mixed number (\(1 {2 \over 3} \)) which has a whole number part and a fractional part.


5

Cooks are needed to prepare for a large party. Each cook can bake either 3 large cakes or 14 small cakes per hour. The kitchen is available for 4 hours and 40 large cakes and 460 small cakes need to be baked.

How many cooks are required to bake the required number of cakes during the time the kitchen is available?

41% Answer Correctly
13
10
5
7

Solution

If a single cook can bake 3 large cakes per hour and the kitchen is available for 4 hours, a single cook can bake 3 x 4 = 12 large cakes during that time. 40 large cakes are needed for the party so \( \frac{40}{12} \) = 3\(\frac{1}{3}\) cooks are needed to bake the required number of large cakes.

If a single cook can bake 14 small cakes per hour and the kitchen is available for 4 hours, a single cook can bake 14 x 4 = 56 small cakes during that time. 460 small cakes are needed for the party so \( \frac{460}{56} \) = 8\(\frac{3}{14}\) cooks are needed to bake the required number of small cakes.

Because you can't employ a fractional cook, round the number of cooks needed for each type of cake up to the next whole number resulting in 4 + 9 = 13 cooks.