CBEST Math: Computation and Problem-Solving 5

Question 1

A plumber charges a $45 flat fee plus $30 per hour. If the total bill is $165, how many hours did the plumber work?

Accepted Answer

4

Answer

$165 − $45 = $120 remaining, and $120 ÷ $30 = 4 hours.

Question 2

What is the area of a triangle with a base of 14 cm and a height of 9 cm?

Accepted Answer

63 cm²

Answer

Area = ½ × base × height = ½ × 14 × 9 = 63 cm².

Question 3

If a shirt originally costs $60 and is now priced at $45, what is the percent decrease?

Accepted Answer

25%

Answer

Decrease = $15; percent decrease = 15/60 × 100 = 25%.

Question 4

Which of the following fractions is between 1/3 and 1/2?

Accepted Answer

2/5

Answer

1/3 ≈ 0.333 and 1/2 = 0.5; 2/5 = 0.4, which lies between them.

Question 5

A store buys an item for $40 and marks it up 35%. What is the selling price?

Accepted Answer

$54.00

Answer

35% of $40 = $14, so selling price = $40 + $14 = $54.

CBEST - California Basic Educational Skills Test Practice Test