ASVAB Arithmetic Reasoning Practice Test 615635 Results

Your Results Global Average
Questions 5 5
Correct 0 3.52
Score 0% 70%

Review

1

The total water usage for a city is 40,000 gallons each day. Of that total, 29% is for personal use and 64% is for industrial use. How many more gallons of water each day is consumed for industrial use over personal use?

58% Answer Correctly
14,000
6,000
14,400
3,000

Solution

64% of the water consumption is industrial use and 29% is personal use so (64% - 29%) = 35% more water is used for industrial purposes. 40,000 gallons are consumed daily so industry consumes \( \frac{35}{100} \) x 40,000 gallons = 14,000 gallons.


2

What is the distance in miles of a trip that takes 5 hours at an average speed of 60 miles per hour?

87% Answer Correctly
120 miles
260 miles
300 miles
100 miles

Solution

Average speed in miles per hour is the number of miles traveled divided by the number of hours:

speed = \( \frac{\text{distance}}{\text{time}} \)

Solving for distance:

distance = \( \text{speed} \times \text{time} \)
distance = \( 60mph \times 5h \)
300 miles


3

What is (b5)5?

80% Answer Correctly
b25
b0
b10
5b5

Solution

To raise a term with an exponent to another exponent, retain the base and multiply the exponents:

(b5)5
b(5 * 5)
b25


4

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

67% Answer Correctly
120
20
60
\( \frac{1}{72} \)

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


5

What is \( \frac{7}{3} \) - \( \frac{6}{5} \)?

61% Answer Correctly
2 \( \frac{3}{8} \)
\( \frac{5}{11} \)
1 \( \frac{1}{10} \)
1\(\frac{2}{15}\)

Solution

To subtract these fractions, first find the lowest common multiple of their denominators. The first few multiples of 3 are [3, 6, 9, 12, 15, 18, 21, 24, 27, 30] and the first few multiples of 5 are [5, 10, 15, 20, 25, 30, 35, 40, 45, 50]. The first few multiples they share are [15, 30, 45, 60, 75] making 15 the smallest multiple 3 and 5 share.

Next, convert the fractions so each denominator equals the lowest common multiple:

\( \frac{7 x 5}{3 x 5} \) - \( \frac{6 x 3}{5 x 3} \)

\( \frac{35}{15} \) - \( \frac{18}{15} \)

Now, because the fractions share a common denominator, you can subtract them:

\( \frac{35 - 18}{15} \) = \( \frac{17}{15} \) = 1\(\frac{2}{15}\)