# Alligation or Mixture - Aptitude Questions and Answers Part 3

**11. A pitcher contains a mixture of alcohol and water. The percentage of alcohol in the mix is 18%. The bartender decides to replace 6 Litres of the mix with mineral water and the mix now contains 15% alcohol only. Find the capacity of the pitcher.**
a. 25 Litres

b. 30 Litres

c. 36 Litres

d. 45 Litres

**12. Two pitchers contain a mix of alcohol and water in the ratio 5:3 and 5:11 respectively. **

Equal quantity of mixture from both the pitchers is taken and added to a third pitcher. What is the ratio of alcohol and water in the mix contained in the third pitcher?
a. 13:15

b. 15:13

c. 15:17

d. 17:15

**13. Gold and Copper are mixed in different proportions to form two different alloys. Alloy 1 has them in the ratio 1:3 respectively while Alloy 2 has them in the ratio 2:5. In what ratio should Alloy 1 and Alloy 2 be mixed to form a mix which has Copper and Gold in the ratio 8:3?**
a. 4:7

b. 5:7

c. 7:4

d. 7:5

**14. A chemical X is formed when two chemicals are mixed in the ratio 3:2 in a controlled environment. Now consider the following: **

i. The first chemical is a mix of two chemical A and B in the ratio 1:3.

ii. The second chemical is a mix of same two chemicals A and B in the ratio 2:1.

What is the ratio of chemical A and B in the final chemical X?
a. 7:11

b. 11:7

c. 8:15

d. 15:8

**15. A milkman makes his milk mixture by adding water to pure milk. He makes a mixture of 340 L milk with milk and water in the ratio 27:7. To meet the growing demand, he decides to further dilute the mixture with water. The new mixture has pure milk and water in the ratio 3:1. How much more water will he have to add to the previous mixture?**
a. 10 litre

b. 15 litre

c. 20 litre

d. 24 litre

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