Ratio Word Problems Algebra

Alice's salary is in the ratio of 5:7 with Bob's salary. If Bob earns $4200, how much does Alice earn?

• $4500

• $3500

• $3000

• $4000

A fruit basket contains apples and oranges in the ratio 3:5. If there are 24 apples, how many oranges are there?

• 30

• 36

• 40

• 32

The ratio of pages read by John to those read by Alice is 4:3. If John read 32 pages, how many pages did Alice read?

• 36

• 30

• 28

• 24

In a classroom, the ratio of boys to girls is 2:3. If there are 30 students in total, how many boys are there?

• 20

• 18

• 15

• 12

A recipe calls for 2 cups of sugar for every 5 cups of flour. If a baker wants to use 10 cups of flour, how many cups of sugar are needed?

• 2 cups

• 4 cups

• 6 cups

• 8 cups

Two ingredients are mixed in a ratio of 5:3. If you have 40 grams of the first ingredient, how many grams of the second ingredient do you need?

• 24 grams

• 15 grams

• 30 grams

• 12 grams

For every 8 ounces of water, a solution requires 2 ounces of a chemical. How many ounces of the chemical are needed for 32 ounces of water?

• 4 ounces

• 6 ounces

• 8 ounces

• 16 ounces

A fruit salad is made by mixing oranges and apples in the ratio 3:5. If there are 15 oranges, how many apples are there?

• 25

• 20

• 30

• 35

While preparing for a triathlon, Janecia swims 8 minutes for every 20 minutes she bikes.  If she swims 72 minutes, how long does she bike for?

• 180 minutes

• 144 minutes

• 92 minutes

• 80 minutes

A bag contains red, blue, and green marbles in the ratio 2:3:4. If there are 18 blue marbles, how many marbles are there in total?

• 36

• 54

• 72

• 90