Ratios
Are they Proportional?
Are they equal?
Unit Rate
Which is the Better Buy??
Ratio Word Problems
100

There are 10 white marbles and 3 blue marbles. What is the ratio of white to blue marbles? (write 3 ways)

10:3

10 to 3

10/3

100

12:20 and 3:5

Yes, they are proportional.

100

Katie drove 240 miles in 6 hours.  How many miles did she drive in 1 hour?

Katie drove 40 miles in one hour.

100

16 pounds for $31.68

28 pounds for $49.56

28 pounds for $49.56

100

Jane had 13 dogs and 12 cats.  Write the ratio of cats to dogs.

12:13

200

There are 14 white marbles and 6 blue marbles. What is the ratio of white to all marbles? (write 3 ways)

*Make sure your answers are simplified!!

7:10

7 to 10

7/10

200

3:4 and 9:10

No, these ratios are not equal.

200

Jonah flew 360 miles in 10 hours, how many miles did he fly in 1 hour?

Jonah flew 36 miles in one hour.

200

$625 for 25 pairs of shoes

$800 for 33 pairs of shoes

$800 for 33 pairs of shoes

200

There were 12 boys in the class and 11 girls.  Write the ratio of girls to the class.

11:23

300

There are 2 red blocks, 3 orange blocks, and 4 black blocks. What is the ratio of all to black blocks? (Write 3 ways)

9:4

9 to 4

9 / 4

300

10:20 and 33:66

Yes, they are proportional.  Both simplify to 1:2

300

You can buy 8 pencils for $4.98.  What is the cost per pencil? (round to the nearest cent if needed)

$0.62 for each pencil.

300

3 liters of soda for $1.89

10 liters of soda for $6.90

3 liters of soda for $1.89

300

The ratio of boys to girls is 1:2 if there are 12 boys how many girls are there?

24 girls

400

Fill in the blanks so the given 3 ratios are all equal.

1:2, 

3:__

__:20

1:2

3:6

10:20

400

11:7 and 77:11

No, these ratios are not equivalent.

400

Matt can run 10 miles in 4 hours.  How far can he run in 1 hour?

2.5 miles in one hour.

400

12 chocolate bars for $22

20 chocolate bars for $33

20 chocolate bars for $33

400

A factory makes 5 bicycles per hour.  How many bicycles can they make in 2 hours?

10 bicycles in 2 hours

500

Which ratio is different from the others?

a) 1:7 

b) 2:5 

c) 4:10

d) 8:20

a) 1:7

500

4000:5000 and 80:100

Yes, both ratios simplify to be 4:5

500

A copy machine makes 45 copies in 25 seconds.  Find the unit rate in copies per second.

1.8 copies per second.

500

24 pounds of turkey for $10.08

9 pounds of turkey for $4.77

24 pounds of turkey for $10.08

500

The ratio of apples to oranges is 2:3 if there are 30 oranges how many apples are there?

20