Solving Problems with Proportions

​ ​ ​ ​ The value of the U.S. dollar in comparison to the value of

foreign currency changes daily. What would be the value of 20 Euros in terms of US Dollars?

Solving percent proportion word problems: If 20% of the students in a class are girls, and there are 30 students in total, how many girls are there?

• 10

• 40

• 6

• 25

Solving percent proportion word problems: A shirt that originally cost $40 is on sale for 25% off. What is the sale price of the shirt?

• $35

• $25

• $30

• $45

Solving percent proportion word problems: The price of a computer is $800, which is 20% off the original price. What is the original price of the computer?

• $700

• $500

• $1000

• $600

Using percent proportions to solve real-life problems: If a car originally cost $20,000 and is now selling for 15% off, what is the sale price of the car?

• $18,500

• $17,000

• $16,000

• $19,500

Using percent proportions to solve real-life problems: If you scored 85% on a test with 50 questions, how many questions did you answer correctly?

• 40

• 30

• 45

• 43

It takes Mike 18 minutes to finish reading 4 pages of a book.  If Mike reads each page at the same pace, how long does it take for him to finish reading 30 pages?

• 125 minutes

• 162 minutes

• 72 minutes

• 135 minutes

Solve for x 

• x = 15

• x = 11

• x = 1/11

• x = 20

Solve for x 

• x = 16

• x = 28

• x = 1/26

• x = 26

Pat needs 14 sticks of pepperoni to make 28 pizzas. How many sticks of pepperoni are needed to make 36 pizzas?

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