Intro to Ratios

A student has 35 pens. Sixteen of the pens are blue and the rest are red. What is the ratio of red pens to blue pens?

• 19:16

• 16:19

• 35:16

• 16:35

At a farm the ratio of cows to horses was 10:3. If there were 30 cows at the farm, how many horses were there?

• 39

• 3

• 6

• 9

At a restaurant the ratio of chocolate shakes to vanilla shakes was 5:4. If there were 20 chocolate shakes sold, how many vanilla shakes were sold?

• 36

• 16

• 9

• 25

At a carnival Scott bought 18 tickets. He used 12 of his tickets to ride some rides. What is the ratio of tickets that he has left to tickets he used?

• 18:12

• 6:12

• 6:18

• 12:18

Are 3:5 and 9:18 equivalent ratios?

• yes

• no

Which ratio is equivalent to 4:7

• 12:21

• 8:15

• 16:21

• 12:28

Select two ratios that are equivalent to 8:20

• 4:15

• 16:25

• 4:10

• 2:5

At a buffet the ratio of chicken nuggets to cheese burgers is 8:3. If the buffet has 72 chicken nuggets, how many cheese burgers are there?

• 9

• 27

• 24

• 11

A pet store has a ratio of cats to dogs of 6: 10. If there are 30 cats at the pet store, how many total cats and dogs are there?

• 50

• 18

• 48

• 80

Ten soccer players were going to a soccer tournament with their three coaches. What is the ratio of coaches to players? 

• 10 : 3
• 10:13
• 3 : 10
• 3:13