Percent Problems and Simple Interest

Jose started doing extra chores around the house and his allowance changed from $30 per week to $40 per week. What is the approximate percent of change in Jose's allowance?

• Increase of 33.3%

• Increase of 25%

• Increase of 30.3%

• Increase of 38%

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

• $150

• $192

• $1350

• $1392

A skateboard is on sale with a 25% discount. The original price was $120.
Find the sale price.

• 60

• 90

• 110

• 44

The movie theater has 250 seats. 225 seats were sold for the current showing. What percent of seats are sold?

• 10%

• 20%

• 80%

• 90%

62 is 90.5% of what number?

• 68.51

• 6850.83

• 6850.8

• 68.5

Jessica borrowed $4,000 for 5 years at 6% simple interest rate to pay for her band equipment. How much interest is that?

• $800

• $1,000

• $1,200

• $1,500

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%

• 41%

• 42%

• 45%

Nancy earned 60 points on her last test. If there were 75 possible points, what was her percent grade?

• 20%

• 40%

• 60%

• 80%

Mr. Pham has $410,000 in a retirement account that earns 3.85% simple interest each year. Determine the amount earned each year by this investment.

• $15,785

• $157,850

• $425,785

Find each percent decrease. Round to the nearest percent.
From $80 to $64 

• 35%

• 10%

• 20%

• 25%