Ratio and Proportion Quiz 8

An airplane travels at a constant speed of 320 miles per hour. How far, in miles, will the airplane travel in 15 minutes?

• 80 miles

• 40 miles

• 160 miles

• 8 miles

Jenny has finished 12 of the 20 lessons in her piano book. Liam has finished the same percent of lessons from his piano book. His book contains 30 lessons. How many lessons has Liam finished?

• 12

• 15

• 18

• 24

There are 4 trucks for every 5 cars in a parking lot. How many trucks and cars could be in the parking lot?

• A. 64 trucks and 80 cars

• B. 72 trucks and 73 cars

• C. 84 trucks and 100 cars

• D. 96 trucks and 110 cars

Seventy-five 6th-grade students chose to watch a movie on the last day of school. This is 25% of the 6th-grade class. How many total students are in the 6th grade?

• A. 100

• B. 200

• C. 300

• D. 400

A restaurant orders corn tortillas and flour tortillas. The ratio of the number of corn tortillas to the number of flour tortillas is 2 : 3. What is the ratio of the number of flour tortillas to the total number of tortillas?

• A. 3 : 8

• B. 3 : 5

• C. 2 : 8

• D. 2 : 5

In the table, the ratio of y to x is constant. What is the value of the missing number?

• A. 15

• B. 20

• C. 25

• D. 30

A set of stickers contains 4 hearts for every 6 stars. Which choice contains an equivalent ratio of hearts to stars?

• 6 hearts to 9 stars

• 2 hearts to 4 stars

• 1 heart to 3 stars

• 8 hearts to 10 stars

Sarah earns $400 per week and spends 15% of her earnings on transportation. How much does Sarah spend on transportation every week?

• $80

• $75

• $60

• $55

A store sells cans of tomatoes priced as shown in the table. Which size can of tomatoes has the lowest cost per ounce?

• A. 10 ounces

• B. 15 ounces

• C. 18 ounces

• D. 32 ounces

If 45% of a number, n, is 225, what is 74% of n?

• A. 185

• B. 298

• C. 370

• D. 406