CBEST Mathematics 4

Question 1

What is the median of the data set: 3, 7, 9, 12, 15?

Accepted Answer

9

Answer

The median is the middle value of an ordered set; here it is 9.

Question 2

A savings account earns simple interest at 4% per year. How much interest does $500 earn in 3 years?

Accepted Answer

$60

Answer

Simple interest = P × r × t = 500 × 0.04 × 3 = $60.

Question 3

Which of the following is the largest number?

Accepted Answer

9/20

Answer

9/20 = 0.45 and 4/9 ≈ 0.444, while 44% = 0.44; all are equal or 9/20 ties 0.45, but 9/20 = 0.45 is equal to 0.45 and larger than 44% and 4/9.

Question 4

A map has a scale of 1 inch = 50 miles. Two cities are 3.5 inches apart on the map. What is the actual distance?

Accepted Answer

175 miles

Answer

3.5 × 50 = 175 miles.

Question 5

If y = 3x − 2 and x = 4, what is y?

Accepted Answer

10

Answer

y = 3(4) − 2 = 12 − 2 = 10.

CBEST - California Basic Educational Skills Test Practice Test