MIXTURE MCQ SET 3
1. The ratio of milk and water in a mixture is 7 : 5 . How much part of the mixture should be replaced by water so that ratio of milk and water is 2 : 3?
(a) 11/35
(b) 11/25
(c) 13/24
(d) 13/36
Answer: A
2. A beaker is filled with a liquid , 3 parts of which are water and 7 parts some medicine . What part of the mixture should be replaced with water so that the resultant mixture has water and medicine in a ratio 1 : 1 ?
(a) 2/7
(b) 1/7
(c) 2/5
(d) 1/5
Answer: A
3. A vessel contained a solution of acid and water , in which water was 64% . Four liters of the solution was taken out of the vessel and the same quantity of water was added . If the resulting solution contains 30% acid , the quantity (in liters) of the water in the solution , at the beginning in the vessel , was :
(a) 11.36
(b) 15.36
(c) 8.64
(d) 12.64
Answer: B
4. A jar contained a mixture of two liquids A and B in the ratio 4 : 1 . When 10 liters of the mixture was taken out and 10 liters of liquid B was poured into the jar , this ratio became 2 : 3 . The quantity of liquid . A contained in the jar initially was
(a) 4 liters
(b) 8 liters
(c) 16 liters
(d) 40 liters
Answer: C
5. A container contains a mixture of two liquids , A and B , in the proportion 7 : 5 . If 9 liters of the mixture is replaced by 9 liters of liquid B , then the ratio of the two liquids becomes 7 : 9 . How much of liquid A was there in the container initially ?
(a) 21 liters
(b) 35 liters
(c) 40 liters
(d) 19 liters
Answer: A
6. The ratio of milk and water in a vessel is 13 : 11 . If 48ltr of mixture is taken out and 81 ltr water is added then ratio of milk and water becomes 7 : 8 . Find quantity of milk in initial mixture .
(a) 301 liters
(b) 325 liters
(c) 395 liters
(d) 299 liters
Answer: D
7. A vessel contains 64 liters of mixture of milk and water in the ratio 7 : 3 respectively . 8L of mixture is replaced by 12 liters milk . What is the ratio of milk and water in the resulting mixture?
(a) 64 : 21
(b) 35 : 22
(c) 64 : 23
(d) 65 : 21
ย Answer: A
8. Alloys A and B contain copper and zinc in the ratio 7 : 8 and 4 :1 , respectively . In what ratio should A and B be mixed to obtained a new alloy C containing copper and zinc in the ratio 2 : 1 ?
(a) 2 : 3
(b) 5 : 6
(c) 4 : 5
(d) 3 : 4ย
Answer: A
9. Two containers have mixtures of milk and water , respectively , in the ratios 3 : 2 and 6 : 5 . In what ratio should the contents be mixed so that the ratio of milk to water in the final mixture is 4 : 3 ?
(a) 10 : 11
(b) 6 : 13
(c) 5 : 8
(d) 9 : 14
Answer: A
10. An alloy contains a mixture of two metals X and Y in the ratio of 2 : 3 . The second alloy contains a mixture of the same metals , X and Y , in the ratio 7 : 3 . In what ratio should be the first and second alloys be mixed so as to make a new alloy contains 50% of metal X?
(a) 3 : 4
(b) 3 : 1
(c) 5 : 6
(d) 2 : 1
Answer: D
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