Ratios Rates And Percents

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

Henry has 15 lawns mowed out of a total of 60 lawns. What percent is that?

• 15

• 25

• 19

• 4

What is 20% of 75?

• 15

• 60

• 6

• 1.5

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2:5

• 5:3

• 3:5

• 5:2

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

A person ate 2400 calories in a day. Of these, 36% came from fat. How many calories came from fat?

• 984

• 830

• 1142

• 864

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.

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.

If 8 is 40% of a number, what is the number?

• 20

• 10

• 15

• 25

Answer explanation

To find the number, divide 8 by 0.40 (40%). 8 ÷ 0.40 = 20. Therefore, the number is 20.

In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?

• 35

• 60

• 18

• 50