Quiz about Percent Proportions Review

Question 1

What is the percent of increase for a population that changed from 438,000 to 561,000 to the nearest hundredth?

Accepted Answer

28.08% increase

Answer

28.08% decrease

Answer

28% increase

Answer

23% increase

Question 2

A merchant buys a television for $125 and sells it for a retail price of $200. What is the markup rate?

Accepted Answer

60% increase

Answer

40% increase

Answer

60% decrease

Answer

40% decrease

Question 3

In 1950, the population of a city was about 800,000 people. Over the next 50 years, the population increased to 1.3 million. Find the percent of increase.

Accepted Answer

62.5% increase

Answer

63% increase

Answer

60% decrease

Answer

60% increase

Question 4

A shopper bought shoes marked $45. The sales tax is 6.5%. How much did the shopper pay in all?

Accepted Answer

$47.93

Answer

$2.93

Answer

$42.07

Question 5

A keyboard that costs $475 is marked down 15% for a sale. What is the reduced price of the keyboard?

Accepted Answer

$403.75

Answer

$71.25

Answer

$546.25

Question 6

In a science experiment 12 grams of salt crystals were left out in an open dish. After 24 hours, the total mass of the crystals had increased to 14.76 grams.  What is the percent of change over the 24 hours?

Accepted Answer

23% increase

Answer

2.3% decrease

Answer

2.3% increase

Answer

23% decrease

Question 7

Nichole wanted to buy a purse that originally costs $39.95, but was on sale for 60% off.  If the sales tax rate was 8.25%, calculate the final price that she would pay, including sales tax.

Accepted Answer

$17.30

Answer

$15.98

Answer

$23.97

Answer

$1.32

Question 8

A business bought a lot of 2,500 lamps for fifty thousand dollars and wants to sell them at a 15% profit. How much should each lamp cost?

Accepted Answer

$23

Answer

$15

Answer

$25

Answer

$230

Question 9

$5,000 was invested at a simple interest rate. In 15 years, the account was worth $6500. What was the interest rate?

Accepted Answer

2%

Answer

20%

Answer

15%

Question 10

Jasmine borrowed $12,000 to purchase a car. The interest rate on her loan is 5.5% compounded annually. What is the total price Jasmine will have paid for her car after 5 years?

Accepted Answer

$15683.52

Answer

$15683.53

Answer

$16683.52

Answer

$16683.53

Question 11

$12,000 is invested for 4 years at a simple interest rate of 1.5%. How much does the investment earn?

Accepted Answer

$720

Answer

$820.50

Answer

$720.50

Answer

$820

Question 12

Mark invested $1,500 at 7% compounded annually for 3 years. What was the total value of his investment at the end of 3 years?

Accepted Answer

$1837.56

Answer

$1837.55

Answer

$1937.56

Answer

$720

Question 13

Use simple interest to find the ending balance: $34,100 at 4% for 3 years.

Accepted Answer

$38,192

Answer

$38,193

Answer

$4092

Answer

$30,008

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