Grade 6 | Unit 3 | Lesson 11: Percentages and Double Number Lines | Practice Problems

During a basketball practice, Mai attempted 40 free throws and was successful on 25% of them. How many successful free throws did she make?

Yesterday, Priya successfully made 12 free throws. Today, she made 150% as many. How many successful free throws did Priya make today?

A 16-ounce bottle of orange juice says it contains 200 milligrams of vitamin C, which is 250% of the daily recommended allowance of vitamin C for adults. What is 100% of the daily recommended allowance of vitamin C for adults?

At a school, 40% of the sixth-grade students said that hip-hop is their favorite kind of music. If 100 sixth-grade students prefer hip hop music, how many sixth-grade students are at the school? Explain or show your reasoning.

Diego has a skateboard, scooter, bike, and go-cart. He wants to know which vehicle is the fastest. A friend records how far Diego travels on each vehicle in 5 seconds. For each vehicle, Diego travels as fast as he can along a straight, level path.

Vehicle	Distance Traveled
Skateboard	90 feet
Scooter	1,020 inches
Bike	4,800 centimeters
Go-cart	0.03 kilometers

What is the distance each vehicle traveled in centimeters? Rank the vehicles in order from fastest to slowest.

• Skateboard: 2,743.2

• Scooter: 2,590.8

• Bike: 4,800

• Go-cart: 3,000

It takes 10 pounds of potatoes to make 15 pounds of mashed potatoes. At this rate: How many pounds of mashed potatoes can they make with 15 pounds of potatoes?

It takes 10 pounds of potatoes to make 15 pounds of mashed potatoes. At this rate: How many pounds of potatoes are needed to make 50 pounds of mashed potatoes?