ASVAB Arithmetic Reasoning Practice Test 687972 Results

Your Results Global Average
Questions 5 5
Correct 0 2.86
Score 0% 57%

Review

1

On average, the center for a basketball team hits 45% of his shots while a guard on the same team hits 65% 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
17
43
20
18

Solution
If the guard hits 65% of his shots and takes 15 shots he'll make:

guard shots made = shots taken x \( \frac{\text{% made}}{100} \) = 15 x \( \frac{65}{100} \) = \( \frac{65 x 15}{100} \) = \( \frac{975}{100} \) = 9 shots

The center makes 45% 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 = \( \frac{9}{\frac{45}{100}} \) = 9 x \( \frac{100}{45} \) = \( \frac{9 x 100}{45} \) = \( \frac{900}{45} \) = 20 shots

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


2

What is 7\( \sqrt{2} \) x 2\( \sqrt{2} \)?

41% Answer Correctly
14\( \sqrt{2} \)
14\( \sqrt{4} \)
28
9\( \sqrt{4} \)

Solution

To multiply terms with radicals, multiply the coefficients and radicands separately:

7\( \sqrt{2} \) x 2\( \sqrt{2} \)
(7 x 2)\( \sqrt{2 \times 2} \)
14\( \sqrt{4} \)

Now we need to simplify the radical:

14\( \sqrt{4} \)
14\( \sqrt{2^2} \)
(14)(2)
28


3

If \(\left|a\right| = 7\), which of the following best describes a?

67% Answer Correctly

a = 7

a = 7 or a = -7

none of these is correct

a = -7


Solution

The absolute value is the positive magnitude of a particular number or variable and is indicated by two vertical lines: \(\left|-5\right| = 5\). In the case of a variable absolute value (\(\left|a\right| = 5\)) the value of a can be either positive or negative (a = -5 or a = 5).


4

What is -b7 - 9b7?

71% Answer Correctly
8b49
-10b7
-10b-7
8b-14

Solution

To add or subtract terms with exponents, both the base and the exponent must be the same. In this case they are so subtract the coefficients and retain the base and exponent:

-1b7 - 9b7
(-1 - 9)b7
-10b7


5

In a class of 25 students, 5 are taking German and 11 are taking Spanish. Of the students studying German or Spanish, 5 are taking both courses. How many students are not enrolled in either course?

63% Answer Correctly
14
24
18
11

Solution

The number of students taking German or Spanish is 5 + 11 = 16. Of that group of 16, 5 are taking both languages so they've been counted twice (once in the German group and once in the Spanish group). Subtracting them out leaves 16 - 5 = 11 who are taking at least one language. 25 - 11 = 14 students who are not taking either language.