Practice Problems

These problems and answers were taken from THE MASTER GED by ARCO
Thompson Learning (2002). Math Practice Problems

* When taking the GED Exam, not all problems will allow use of a calculator.  We
recommend that you work all of the following problems manually to ensure being able to
work GED Math Exam problems with or without a calculator.

1.         Find the lowest common denominator of 1/6, 1/10, 1/18, and 1/21.

a. 160  b. 330 c. 630 d. 1,260 e. 1,420

2.         A man spent 15/16 of his entire fortune in buying a car for \$ 7,500.
How much money did he possess?

a.  \$ 6,000  b. \$ 6,500  c. 7,000 d. 7,500 e. \$ 8,000

3.         Add 37.03, 11.5627, 3.4005, 3423, and 1.141

a. 3476.1342  b. 3500  c. 3524.4322  d. 3424.1342 e. 3452.4852

4.         If the outer diameter of a metal pipe is 2.84 inches and the inner diameter is
1.9 inches, the thickness of the metal is

a.  .45 inches  b.  .90 inches  c.  1.94 inches  d.  2.39 inches  e.  2.50 inches

5.         The regular price of a TV set that sold for \$ 118.80 at a 20 % reduction sale is

a. \$ 148.50   b. \$ 142.60   c. \$ 138.84   d. \$ 95.04   e. \$ 90.04

6.         In a school in which 40 % of the enrolled students are boys, 80 % of the boys
are present on a certain day. If 1152 boys are present, the total enrollment is

a. 1,440   b. 2,880   c. 3,600   d. 5,400   e. 5,600

7.         The square of 10 is

a.  1      b.  2      c.  5     d.  100    e.  105

8.         The square root of 1175, to the nearest whole number, is

a.  32    b. 33      c.  34    d.  35     e.  36

9.         A carpenter needs boards for 4 shelves, each 2'9'' long.
How many feet of boards should he buy?

a.  11   b. 11 1\6   c.  13   d.  15 1\2   e.  16

10.       Four full bottles of equal size contain a total of 1.28 liters of cleaning solution.
How many milliliters are in each bottle?

a.  3.20    b.  5.12    c.  320   d.  512    e.  620

11.       The arithmetic mean of 73.8, 92.2, 64.7, 43.8, 56.5, and 46.4 is

a.  60.6    b.  61.00    c.  61.28    d.  61.48    e.  62.9

12.       The median of the numbers 8, 5, 7, 5, 9, 9, 1, 8, 10, 5, and 10 is

a.  5      b.  7     c.  8      d.  9      e.  10

13.       The mode of the numbers 16, 15, 17, 12, 15, 15, 18, 19, and 18 is

a.  15     b.  16    c.  17    d.  18    e.  19

14.       In a balloon factory, a random sampling of 100 balloons showed that 3 had
pinholes in them.  In a sampling of 2,500 balloons, how many may be expected
to have pinholes?

a.  30    b.  75    c.  100    d.  750    e.  800

15.       Jane Rose's semimonthly salary is \$ 750. Her yearly salary is

a.  \$ 9,000     b.  \$ 12,500    c.  \$ 18,000    d.  \$ 19,500   e.  \$ 21,000

16.       A  salesman is paid a straight commission that is 23 % of his sales.
What is his commission on \$ 1,260 of sales?

a.  \$ 232.40    b.  \$ 246.80   c.  \$ 259.60    d.  \$ 289.80   e.  \$ 298.60

17.       Find the missing term in the following sequence: 5, 10, 20, ___, 80

18.       Find the missing term in the following sequence: ___, 3, 41\2, 6 3\4

19.       The value of 2(-3) - |-4| is

a.  -10     b.  -2     c.  2     d.  10     e.  12

20.       The product of (x + 5) and (x + 5) is

a.  2x + 10     b.  x2 + 25   c.  x2 + 10x + 25   d.  x2 + 10  e.  x2 + 20

21.       If 6x - (2x + 6) = x + 3 then x =

a.  -3      b.  -1      c.  1     d.  2      e.  3

22.       Michael earns \$ 50 for 8 hours of work.  At the same rate of pay
how much will he earn for 28 hours of work?

a.  \$ 150    b.  \$ 175    c.  \$ 186    d.  \$ 232     e.  \$ 286

23.       If the perimeter of a rectangle is 68 yards and the width is 48 feet, the length is

a.  10 yards    b.  18 yards    c.  20 feet   d.  56 feet    e.  60 feet

24.       A box is 12 inches in width, 16 inches in length, and 6 inches in height.
How many square inches of paper would be required to cover it on all sides?

a.  192      b.  360    c.  720    d.  1,440    e.  2,000

25.       A circle has its center at (0,0) and the diameter AB.  If the coordinates of A are
(-4,0), then the coordinates of B are

a.  (4,0)   b.  (0,4)    c.  (0,-4)   d.  (4,-4)   e.  (4,4)

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