Mixtures and Alligation

Question 11

In what ratio should a kind of sugar at 8.70 Rs/kg be mixed with another kind of sugar at 9.70 Rs/kg so that the mixture be worth 9 Rs/kg?

• 3:7
• 4:7
• 7:4
• 7:3

Question 12

In what ratio must rice of one kind worth Rs. 50/kg be mixed with another kind of rice of worth Rs. 55/kg such that by selling the mixture at Rs. 57.20/kg, there can be a gain 10%?

• 3:4
• 4:6
• 1:3
• 3:2

Question 13

A drum filled with a mixture of two liquids l1 and l2 in the ratio 5:7. When 9 liters of mixture is taken out and the replaced by l1. Now the ratio of l1 and l2 is 9:7. How many liters of the liquid l1 were there in the drum initially?

• 15
• 20
• 18
• 25

Question 14

In what ratio a vendor should mix rice at Rs.60 per kg with rice at Rs. 68 per kg so that the final rice mixture must be of worth Rs. 63 per kg?

• 4:5

• 5:3

• 2:3

• 3:2

Question 15

A vessel is filled with a solution of, 3 parts soda and 5 parts rum. How much of the solution must be taken out and replaced with soda so that the solution contains equal amount of sod and rum?

• 8/5
• 2/5
• 1/5
• 5/8