Percents Quiz (Unit 5)

Initial Investment= $350.

Interest rate = 2.5%

Time = 3 years.

How much simple interest earned?

Ann puts $300 in a bank account earning 4% interest. How much will she earn in interest in 1 year?

• $4

• $312

• $12

If you are calculating the simple interest and you are given the time in months, how can you find the time in years?

• Add 12 to the months
• divide the months by 12
• multiply 12 times the months
• You cannot change it to months.

Emilio borrows $1200 from a bank with 8% simple interest per year. How much will he have to pay back in total after 2 years?

• $150

• $192

• $1392

Write the percent as a decimal. 
4.3%

• 4.3
• .43
• .043
• 4300

Write the decimal as a percent. 
0.37

• 37%
• 3.7%
• .37%

Find the simple interest earned when the principal is $500 at a rate of 10% held in the bank for 8 months.

• $33.33

• $40,000

• $533.33

The number of people signed up for a bus trip increased from 32 to 45. What is the percent increase? Round to the nearest percent.

• 52% decrease

• 41% increase

• 42% increase

• 41% decrease

Rosa and her friends are eating out for dinner. The bill was $45.80. They want to leave a 20% tip. How much should they leave for tip?

• $54.96
• $45.80
• $9.16
• $20

The regular price of a sofa is $599.99.

If there is a 20% discount and

the sales tax is 6%

How much will the sofa cost? (remember to take the discount off then apply the tax)

• $508.79

• $479.99

• $635.99

• $489.59