MIXTURE MCQ SET 5
1. Three containers have their volumes in the ratio 3 : 4 : 5 . They are full of mixtures of milk and water . The mixture contain milk and water in the ratio of (4 : 1) , (3 : 1) and (5 : 2) respectively . The contents of all these three containers are poured into a fourth container . The ratio of milk and water in the fourth container is:
(a) 4 : 1
(b) 151 : 48
(c) 157 : 53
(d) 5 : 2
Answer: C
2. Three containers whose volumes are in the ratio of 2 : 3 : 4 are full of mixture of spirit and water . In the 1st container , the ratio of spirit and water is 4 : 1 , in the 2nd container the ratio is 11 : 4 and in the 3rd container ratio is 7 : 3 . All the three mixtures are mixed in a big container . The ratio of spirit and water in the resultant mixture is:
(a) 4 : 9
(b) 11 : 4
(c) 5 : 10
(d) 9 : 5
Answer: B
3. 60 kg of alloy A is mixed with 100 kg of alloy B . If alloy A has lead and tin in the ratio 3 : 2 and alloy B has tin and copper in the ratio 1 : 4 , the amount of tin in the new alloy is
(a) 53 kg
(b) 44 kg
(c) 80 kg
(d) 24 kg
Answer: B
4. In two alloys A and B , the ratio of zinc to tin is 5 : 2 and 3 : 4 respectively . Seven kg of the alloy A and 21 kg of the alloy B are mixed together to form a new alloy . What will be the ratio of zinc and tin in the new alloy ?
(a) 2 : 1
(b) 1 : 2
(c) 2 : 3
(d) 1 : 1
Answer: D
5. These are three bottles of mixture of syrup and water of rations 2 : 3 , 3 : 4 and 7 : 5 , 10 liters of the first and 21 liters of the second bottles are taken . How much quantity from third bottle is to be taken so that final mixture from three bottles will be ratios 1 : 1 .
(a) 25 ltr
(b) 20 ltr
(c) 35 ltr
(d) 30 ltr
Answer: D
6. In a mixture of three varieties of tea , the ratio of their weights is 4 : 5 : 8 . If 5 kg tea of the first variety , 10 kg tea of the second variety and some quantity of tea of the third variety are added to the mixture , the ratio of the weights of three varieties of tea becomes as 5 : 7 : 9 . In the final mixture , the quantity (in kg) of the third variety of tea was
(a) 42
(b) 45
(c) 48
(d) 40
Answer: B
7. A solution of 45% alcohol is mixed with a solution of 60 % alcohol in the ratio of 2 : 3 . In what ratio should the resultant solution be mixed with a 72%alcohol solution to get a 66% alcohol solution?
(a) 4 : 7
(b) 1 : 3
(c) 1 : 2
(d) 2 : 3
ย Answer: C
8. Two vessels A and B each with the capacity of 8 ltr are full of solutions of acid and water . The ratio of acid and water in Vessel A is 3 : 1 . and that in case of vessel bis 5 : 3 . Two litres of solution are taken out from B and added to A . After mixing thoroughly , 2 litres of solution are taken out from A and added to B . What is the ratio of acid and water in the final solution in B ?
(a) 11 : 8
(b) 13 : 7
(c) 7 : 3
(d) 9 : 4
Answer: B
9. The ratios of alcohol to water in solutions . A and B are 3 : 5 and 9 : 7 , respectively . A and B are mixed in the ratio 5 : 8 . In 520 ml of the resulting solution , how much water (in ml) should be mixed so as to obtain solution in which the ratio of alcohol to water is 3 : 4 ?
(a) 85
(b) 75
(c) 80
(d) 90ย
Answer: B
10. The ratio of acid and water in solution A is 5 : 4 and 7 : 11 in solution B . 10 liters of A is mixed with 8 liters of B . In 324 ml of the resulting solution , how much water (in ml) should be added to get a solution containing 33 1/3% acid?
(a) 144
(b) 184
(c) 174
(d) 194
Answer: A
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