1. Mixture Problems + 14% 50% = 20% x 20 x+20 Mixing two solutions:
How many liters of a 14 percent alcohol solution must be mixed with 20 liters of a 50 percent alcohol solution to get a 20 percent alcohol solution? +
14%
50% =
20% x 20
x+20

2. Mixture Problems + = $0.65/lb $0.45/lb $0.55/lb x 200 lbs x+200
Blending Seed
How much of $0.65/lb seed does a dealer need to combine with 200 lbs of $0.45/lb seed to make a $0.55/lb blend? + =
$0.65/lb
$0.45/lb
$0.55/lb x
200 lbs
x+200

3. Mixture Problems + 25% 100% = 50% 6 x 6+x
Changing the Concentration of a Solution
A chemist has 6 liters of a 25% alcohol solution. How much alcohol must he add so that the resulting solution contains 50% alcohol? +
25%
100% =
50% 6 x
6+x

4. Mixture Problems How Much Water Evaporated?
A substance is 99% water. Some water evaporates from a vat of 100 liters, leaving a substance that is 98% water. How much of the water evaporated?

5. Mixture Problems Mixing Milk and Butterfat
Milk that has 5% butterfat is mixed with milk that has 2% butterfat. How much of each is needed to obtain 60 gallons of milk that has 3% butterfat?

6. Mixture Problems Mixing Peanuts and Cashews
Peanuts sell for $3.00 per pound. Cashews sell for $6.00 per pound. How many pounds of cashews should be mixed with 12 pounds of peanuts to obtain a mixture that sells for $4.20 per pound?

7. Mixture Problems Mixture Problem
How much pure antifreeze should be added to 3 gallons of a 30 percent antifreeze solution to get 65 percent antifreeze?

8. Mixture Problems Percentage of Alcohol in a Solution
How do I find the percentage of alcohol in 30 liters of a solution that is mixed with 5 liters of a 90% alcohol solution?

9. Mixture Problems Raising the Antifreeze Ratio
A 5-gallon radiator containing a mixture of water and antifreeze is supposed to contain a 50% antifreeze solution...

10. Mixture Problems Sodium 10% Sodium + 30% Sodium
A group of chemists are conducting an experiment to produce a new liquid material. One chemical contains 15% sodium (Na) and the other chemical contains 30% sodium (Na). Once they mix the two samples the resulting chemical contains 22% sodium (Na). How many milliliters (ml) of each sample must be mixed to obtain 600 ml of the new chemical?
Sodium

11. Mixture Problems The Ratio of Water to Wine
A cask is filled with 45 gallons of wine. Nine gallons are removed and the cask is refilled with water. The nine gallons of the mixture are removed and the cask is again refilled with water. What is the ratio of water to wine in the final mixture?

12. Mixture Problems Silver Alloy
Sterling Silver is 92.5% pure silver. How many grams of pure silver and sterling silver must be mixed to obtain 100g of a 94% Silver alloy?

13. Mixture Problems Tea Blend: Price of Inferior Tea
6 kg of inferior quality tea are mixed with 3 kg of high quality tea. What is the price of the inferior tea?

14. Mixture Problems Weighted Averages
An advertisement for an orange drink claims that the drink contains 10% orange juice. How much pure orange juice would have to be added to 5 quarts of the drink to obtain a mixture containing 40% orange juice?