Rates, ratios, and percents SBC

The price of a video game was reduced from $60 to $45. By what percentage was the price of the video game reduced?

• 15%

• 25%

• 75%

• 40%

Kiara downloaded 264 pictures from her cellphone to her computer. These pictures took up 528 megabytes of space on her computer. Each picture took up the same amount of space. How many megabytes do 35 of these pictures take up?

• 18 MB

• 70 MB

• 8 MB

• 23 MB

The ratio of boys to girls in Ms. Cunningham's class is 2 to 3. There are 18 girls in the class. What are the total number of students in Ms. Cunningham's class?

• 12

• 30

• 45

• 27

Russel has a collection of 1,200 pennies. Of these pennies, 25% are dated before 1980, 35% are dated from 1980 to 2000, and the rest are dated after 2000.

How many pennies in Russel's collection are dated after 2000?

• 480

• 720

• 40

• 60

The price of a sweater was reduced from $20 to $12. By what percentage was the price of the sweater reduced?

• 8%

• 80%

• 60%

• 40%

Perry traveled at an average speed of 55 miles per hour for 3.5 hours and then traveled at an average speed of 60 miles per hour for 2.5 hours. What was the total distance in miles that Perry traveled during this time?

• 347.5 mi

• 330 mi

• 360 mi

• 342.5 mi

The owner of a bookstore buys used books from customers for $1.50 each. The owner then resells the books for 400% of the amount that he paid for them.

What is the price of a used book in this bookstore?

• $5.50

• $2.10

• $4.00

• $6.00

A recipe for fruit salad includes 1/3 cup of grapes for 4 servings. How many cups of grapes are needed for 30 servings of the fruit salad?

• 10 cups

• 40 cups

• 2.5 cups

• 7.5 cups

A bookstore offered mystery bags each containing 12 books. The quantity of each type of book was the same in each mystery bag. A shopper bought 3 mystery bags and found out that 6 books were spy novels.

Which prediction can the shopper make about buying mystery bags in the future?

• There will be 4 more spy novels in 8 bags than in 6 bags

• There will be 2 more spy novels in 6 bags than in 4 bags

• There will be 1 more spy novel in 9 bags than in 8 bags

• There will be 6 more spy novels in 10 bags than in 8 bags

The manager of a coffee shop recorded the number of customers who put vanilla creamer or chocolate creamer in their coffee during 1 hour and classified them by age. The results are shown in the table.

What percentage of these customers put chocolate creamer in their coffee during this hour?

• 30%

• 14%

• 70%

• 75%