Ratios, Rates & Percents

Simplify the ratio of
35 : 14

• 5 : 2

• 2 : 5

• 3 : 1

• 35: 14

At the market, 8 apples cost $4.72. What is the cost per apple?

• $0.63 per apple

• $1.54 per apple

• $0.59 per apple

• $0.58 per apple

Which ratio is equivalent to 12:20

• 20:12

• 2:3

• 3:5

• 3:10

15 out of 25 boys chose to go swimming at camp. What percent is that?

• 15%

• 20%

• 45%

• 60%

If 50 is 25% of a number, what is the number?

• 200

• 100

• 150

• 250

Answer explanation

To find the number, divide 50 by 25% (or 0.25). 50 ÷ 0.25 = 200. Therefore, the number is 200.

54 pounds of gummy bears cost $450. How many pounds of bears can you get for $50?

What is the proportion that can be used to represent the problem?

Rancher Rob shipped 520 head of cattle in 12 hours. At this rate, how many head of cattle did Rancher Rob ship in 3 hours?

• 130

• 2,080

• 65

• 43

A 6-foot tall person casts a 4-foot shadow. At the same time, a nearby tree casts a 12-foot shadow. How tall is the tree?

• 9 feet

• 18 feet

• 8 feet

• 12 feet

Answer explanation

The ratio of the person's height to their shadow length is the same as the ratio of the tree's height to its shadow length. Using this, the tree's height can be calculated as 6/4 * 12 = 18 feet.

A quarterback completed 68% of his passes in a game. He threw 25 passes. How many passes did the quarterback complete?

• 18

• 17

• 15

• 20

In a book of stickers, the ratio of large stickers to small stickers is 7 to 5. Based on this ratio, how many large stickers are in the book if there are a total of 96 stickers?

• 56

• 40

• 64

• Not here