Pre-Algebra Demystified

57. Solve
    2(3x
    6)þ 18 ¼24.
    (a) 6
    (b)
    4
    (c) 2
    (d) 1


58. If the sum of 3 times a number and 2 times a number is 60, find the
    number.
    (a) 8
    (b) 10
    (c) 2
    (d) 12


59. The ratio of 20 to 8 is:

(a)

3

5

(b)

5

2

(c)

2

5

(d)

3

2

60. Find the value of x when

x

6

¼

12

24

.

(a) 18

(b) 3

(c) 16

(d) 24

61. If a person uses 15 gallons of gasoline to travel 345 miles, how many
    gallons of gasoline will be needed to travel 506 miles?
    (a) 28 gallons
    (b) 22 gallons
    (c) 27 gallons
    (d) 34 gallons


62. Find the circumference of a circle whose diameter is 28 inches. Use
    p¼3.14.
    (a) 87.92 in.
    (b) 21.98 in.
    (c) 15.62 in.

Final Exam 261