
Challenge Exercises:
Consumer Math 

Unit 10 > Lesson 8 of 9 
Directions: Solve each problem below by entering a whole number, a dollar
amount with cents, or a percent. If your answer is a percent, do NOT enter the
percent symbol. For each exercise below, click once in the ANSWER BOX, type in
your answer and then click ENTER. After you click ENTER, a message will appear
in the RESULTS BOX to indicate whether your answer is correct or incorrect. To
start over, click CLEAR.

1.

At Furnace Woods school, 297 of students take the bus. If this
number is 90% of the school enrollment, then how many students are
enrolled?

2.

A basketball team won 60% of 125 games played in a season? How
many games is that?

3.

On a roofing job, 21 out of 416 shingles had to be rejected for minor
defects. What percent is this? (Round your answer to the nearest
percent.)

4.

In a fashion boutique, a coat that regularly sell for $150 is
marked,
"Get
off." What is the sale price of the coat?

5.

David arranges a 36month car loan of $19,000 at 12.75% annual
interest. Assuming equal monthly payments on principal and interest, how
much will he pay monthly? (Round your answer to the nearest cent.)

6.

Gisele put $800 into a savings account that earns 6.5% simple
interest for the first 3 months and 2.25% simple interest for the next 9
months. How much will she have after 1 year?

7.

The commission rate paid to a sales rep varies according to the type
of equipment sold. If her monthly statement showed $124,600 in sales and
her total commission was $4,438, then what was her rate of commission to
the nearest tenth of a percent?

8.

An interior designer is able to purchase a sofa from a design center
for $1,457. Her client would have to pay $1,880 for the same sofa. What
rate of discount did the designer receive for the sofa?

9.

The output of an electrical circuit increases from 19 amperes to 22
amperes. What is the percent increase in the output? (Round your answer
to the nearest tenth of a percent.)

10.

The reading on a pressure valve decreases from 36 psi to 30 psi.
What is the percent decrease in pressure? (Round your answer to the
nearest tenth of a percent.)

This lesson is by Gisele Glosser. You can find me on Google.
