AFCT Mathematical Aptitude 3

Question 1

What is the square root of 144?

Accepted Answer

12

Answer

The square root of 144 is 12 because 12 x 12 = 144.

Question 2

Convert 3/8 to a decimal.

Accepted Answer

0.375

Answer

Dividing 3 by 8: 3 / 8 = 0.375.

Question 3

If a rectangle has a perimeter of 30 inches and a width of 5 inches, what is its length?

Accepted Answer

10 inches

Answer

Perimeter = 2(length + width). So 30 = 2(L + 5), meaning L + 5 = 15, and L = 10 inches.

Question 4

What is the mean (average) of the numbers 14, 18, 22, and 26?

Accepted Answer

20

Answer

Mean = sum / count = (14 + 18 + 22 + 26) / 4 = 80 / 4 = 20.

Question 5

Simplify the expression: 4(2x + 3) - 2x

Accepted Answer

6x + 12

Answer

Distribute: 4(2x) + 4(3) - 2x = 8x + 12 - 2x = 6x + 12.

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