Ratios & Proportions Quiz

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

• 64 trucks and 80 cars

• 72 trucks and 73 cars

• 84 trucks and 100 cars

• 96 trucks and 110 cars

The list below shows the results of a survey of favorite ice-cream flavors among middle-school students: 18 students voted for chocolate, 12 students voted for strawberry, 20 students voted for vanilla. What percentage of the students chose vanilla as their favorite ice-cream flavor?

• 20%

• 30%

• 40%

• 50%

The ratio of males to females at a camp is 5 to 4. If there are 40 males at the camp, how many females are there?

• 20

• 32

• 39

• 50

The ratio of peanuts to raisins in a snack mix is 5 to 4. A bag of the snack mix contains 200 peanuts. How many raisins are in the bag?

• A) 50

• B) 160

• C) 195

• D) 250

In a basketball game, Tamara made 16 out of 20 shots from the free throw line. What percent of her shots did she make?

• A) 20%

• B) 40%

• C) 60%

• D) 80%

There are 20 pens in a box. Eighteen (18) of the pens are black. The other 2 pens are red. What percentage of the pens are black?

• A) 18%

• B) 38%

• C) 80%

• D) 90%

A club has 800 members. 100 of the members were randomly picked and were asked if the dues should be raised. 6 of the members said that dues should be raised. Based on these results, about how many members in the club would be expected to say that dues should be raised?

• A) 14

• B) 42

• C) 48

• D) 66

Fifty students are going on a field trip. Twenty of the students are boys. What percent of the students are girls?

• A. 40%

• B. 50%

• C. 60%

• D. 80%

A school has 726 students. There are 340 boys. To the nearest whole percent, what percent of the students are girls?

• A. 60%

• B. 50%

• C. 53%

• D. 80%

The lunch meat Mrs. Sanchez bought is listed on the sales receipt below.