Equivalent Ratios
Benchmark Percents
Finding Whole Given
Converting Ratios to Percentages
Word Problems
100

What is the equivalent ratio to 2:3?

4:6, 6:9, 8:12, etc

100

 Express 25% as a fraction in its simplest form.

1/4

100

 If 15% of a number is 30, what is the whole number?

200


 (30 ÷ 0.15)

100

Convert the ratio 2:5 to a percentage.

40%

100

In a group of 50 students, 20% are on the basketball team. How many students are on the basketball team?

10 students 

(20% of 50)

200

What is the equivalent ratio to 10:20?

20:40, 30:60, 40:80, etc

200

What is the benchmark percent equivalent to the fraction 3/4?

75%

200

 A shirt is on sale for 25% off its original price of $40. What is the sale price?

 $30 

(25% of $40 is $10 off)

200

If the ratio of boys to girls is 3:7, what percentage of the group are girls?

70%

200

A recipe calls for 2 cups of sugar and 5 cups of flour. What is the ratio of sugar to flour?

2:5

300

Express the ratio 5:8 in its simplest form

5:8

300

If a group has 10 members, and 20% of them are leaders, how many members are leaders?

2 Members

300

 If 40% of a pizza is eaten and represents 8 slices, how many slices are in the whole pizza?

20 slices

 (8 slices ÷ 0.40)

300

Express the ratio 4:9 as a percentage.

Approximately 44.44%

300

 If a rectangle has a length of 8 units and a width of 5 units, what is the ratio of length to width?

8:5

400

What is the equivalent ratio to 3:4

6:8, 9:12, 12:16, etc

400

Express the benchmark percent 50% as a decimal 

0.5

400

 A bookstore is having a 30% off sale. If a book originally costs $20, what is the discounted price?

$14

 (30% of $20 is $6 off)

400

 If the ratio of red balls to blue balls is 1:4, what percentage of the balls are blue?

80%

400

In a class of 30 students, 25% are girls. How many students are boys?

22 students

 (75% of 30)

500

Convert the ratio 6:9 to its simplest form

2:3

500

If a store offers a 20% discount on a $50 item, how much money will you save?

$10

 (20% of $50 = $10)

500

If 60% of a group of students passed a test, and that represents 24 students, how many students are in the entire group?

40 students

 (24 students ÷ 0.60)

500

Convert the ratio 3:8 to a percentage.

Approximately 37.5%

500

A tank has 40 liters of water. If 30% evaporates, how many liters remain?

28 liters 

(70% of 40)

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