GED Math Practice Test 1

This is our free GED Math Practice Test 1.  To prepare for your GED Math Test, be sure to work through as many practice questions as possible.  After you answer each question, the correct answer will be provided along with a detailed explanation.  Click on the right arrow to move on to the next question.

Directions: Solve each problem. You may use your calculator as needed.

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Question 1
  • In Kingsport School, 46% of students are female. If the number of students is 1250, then how many male students are attending this high school?
A
698
B
692
C
687
D
675
E
585
Question 1 Explanation: 
Percent of male students = 100% − 46% = 54%
Now, find 54% of 1250
0.54 X 1250 = 675
Question 2
  • Erin’s incomes and expenditures for the first five months of the year 2012 are given in the table below:

Spending Table

  • In which two months were her savings the highest?
A
January and February
B
February and March
C
March and May
D
January and March
E
March and April
Question 2 Explanation: 
Explanation: Subtract the income and spending for each month to find the amount of savings:
January: $3020 − $2370 = $650
February: $2827 − $2012 = $815
March: $3589 − $2620 = $969
April: $3424 − $2630 = $794
May: $3540 − $2570 = $970
Comparing the values of the savings shows that she had the highest savings in March and May.
Question 3
The following data set is given: 122, 130,  145,  154,  165,  178
  • Adding which number to the set will increase its mean?
A
130
B
140
C
148
D
149
E
150
Question 3 Explanation: 
The mean of the numbers is: (122 + 130 + 145 + 154 + 165 + 178) ÷ 6
Or 744 ÷ 6 = 149
Among the given choices, only 150 is greater than 149. So, adding 149 will increase the mean.
Question 4
  • Each side of the figure below is 12 in. long.  What is the area of this shape?

Cross Shape

A
60 ft2
B
36 ft2
C
12 ft2
D
6 ft2
E
5 ft2
Question 4 Explanation: 
The shape consists of 5 squares that each are 12 inches long. The answers are in square feet, so it will be easiest to use 1 foot for the length instead of 12 inches.
The area of each square is 1 X 1 = 1 square foot.
There are 5 squares so 5 X 1 = 5 square feet in total area.
Question 5
  • Jerry goes to the bank and borrows $9,000 for farm equipment. The simple yearly interest is 9.5% and he pays off the loan over a period of 2 years with 24 equal monthly payments. What is Jerry’s monthly payment?
A
375.00
B
410.63
C
446.25
D
855.00
E
892.50
Question 5 Explanation: 
Simple Interest = Principal x Rate x Time
= 9,000 x .095 x 2
=1,710
The total that Jerry will be paying back is $9,000 (loan) + $1,710 (interest) = $10,710.
The Duration is 2 years = 24 months.
$10,710 ÷ 24 = $446.25 per month.
Question 6
  • A toy manufacturer makes 15,000 toys a year. Randomly the company selects 300 of the toys to sample for inspection. In the sample you have 5 toys that are faulty. Predict of the 15,000 there are how many faulty?
A
25
B
250
C
300
D
600
E
900
Question 6 Explanation: 
T = faulty toys
Setup the proportion 5/300 = T/15,000
Cross multiply 300T = 5 x 15,000
300T = 75,000
T = 250
Question 7
  • Lisa earns $8.10 an hour and worked 40 hours. Jamie earns $10.80 an hour. Jamie would have to work how many hours to equal Lisa’s earnings over 40 hours?
A
5
B
15
C
25
D
27
E
30
Question 7 Explanation: 
Lisa's earnings: 40 hours x $8.10 an hour = $324
$324 ÷ $10.80 (Jamie’s hourly) = 30 hours
Question 8
  • If the sides of this cube are 4 inches long, what is the cube's volume?

cube

A
16 cubic inches
B
24 cubic inches
C
32 cubic inches
D
48 cubic inches
E
64 cubic inches
Question 8 Explanation: 
The formula for Volume of a Cube: Volume = edge3
Volume =43
= 4 x 4 x 4 = 64
Question 9
  • Jenny is taking a vacation to Florida. She travels 70 kilometers per hour for 2 hours, and 63 kilometers per hour for 5 hours. Over the 7 hour time period what was Jenny’s average speed?
A
64 km/h
B
65 km/h
C
66 km/h
D
67 km/h
E
68 km/h
Question 9 Explanation: 
To find the average use: Total Distance/Total Time
Total Distance = 2(70) + 5(63)
= 140 + 315
= 455 km
Total Time = 7 hours.
Average Speed = 455/7
= 65 km/h
Question 10
  • Melody needs to calculate her water bill.  Her family used 18,900 gallons at a rate of $1.12 per hundred gallons.  There is also a $5.90 distribution charge.  What is her total bill?
A
205.90
B
205.78
C
211.68
D
217.58
E
221.68
Question 10 Explanation: 
The rate is $1.12 for every hundred gallons.
So first divide 18,900 by 100.
18,900/100 = 189
Cost of water is 189 x 1.12 = $211.68
Distribution Charge is $5.90
Total Bill = $211.68 + $5.90
= 217.58
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