Topic 5 Ratio and Rate

The sixth-grade chorus has a boy-to-girl ratio of 3:8. Which of the following ratios is equivalent to this ratio?

• 15 boys to 55 girls

• 55 boys to 15 girls

• 40 boys to 15 girls

• 15 boys to 40 girls

The table shows the home state of the 175 high school students who attended a tri-state debate tournament. The ratio of Illinois students to Michigan students was 6:5. How many students were from Michigan? How many were from Indiana?

• 80 from Michigan, 11 from Indiana

• 75 from Michigan, 16 from Indiana

• 70 from Michigan, 21 from Indiana

• 65 from Michigan, 26 from Indiana

A varsity boys’ basketball team has a ratio of seniors to juniors that is 7:4.

If the team is made up only of juniors and seniors, what is the ratio of seniors to total team members?

• 4:7

• 4:11

• 7:11

• 11:15

Last week, Leah worked 25 hours on weekdays and 11 hours on the weekend. Which ratio compares the number of hours Leah worked on weekdays to the total number of hours she worked?

• 25:11

• 11:25

• 25:36

• 36:25

At a bus station, busses depart at a rate of 3 every 10 minutes. At this rate, how many busses would depart in one hour?

• 3 busses

• 10 busses

• 13 busses

• 18 busses

At a bus station, busses depart at a rate of 3 every 10 minutes. At this rate, how many busses would depart in one hour?

• 3 busses

• 10 busses

• 13 busses

• 18 busses

Lela is buying spools of yarn for a knitting class. She can buy a 40-yard spool for $15.60 or a 60-yard spool for $19.20. Which is the better buy? Explain.

• 40 yd for $15.60 is a better buy at $0.39 per yard

• 60 yd for $19.20 is a better buy at $0.32 per yard

• They are the same deal, at $0.35 per yard

The ratio of pages read to minutes for Hang is 5:8. Who has a greater ratio of pages read to minutes than Hang? Select all that apply.

• Kira: 2 pages read every 4 minutes

• Joe: 6 pages read every 9 minutes

• Quon: 5 pages read every 7 minutes

• Lulu: 10 pages read every 13 minutes

• Lorenzo: 1 page read every 3 minutes

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar