Q. In a mixture of 100 liters, the ratio of oil to water is 1:4. How much oil is in the mixture?
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A.
10 liters
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B.
15 liters
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C.
20 liters
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D.
25 liters
Solution
Let the amount of oil be x liters. Then, water = 4x liters. x + 4x = 100 liters, 5x = 100, x = 20 liters. Therefore, oil = 20 liters.
Correct Answer:
A
— 10 liters
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Q. In a mixture of 40 liters, the ratio of milk to water is 3:1. How much milk is in the mixture?
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A.
30 liters
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B.
25 liters
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C.
20 liters
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D.
15 liters
Solution
Total parts = 3 + 1 = 4. Milk = (3/4) * 40 = 30 liters.
Correct Answer:
A
— 30 liters
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Q. In a mixture of 50 liters, the ratio of milk to water is 3:2. How many liters of milk are there?
-
A.
20 liters
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B.
25 liters
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C.
30 liters
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D.
35 liters
Solution
In a 3:2 ratio, total parts = 3 + 2 = 5. Milk = (3/5) * 50 = 30 liters.
Correct Answer:
C
— 30 liters
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Q. In a mixture of 60 liters, the ratio of sugar to water is 1:5. How much sugar is in the mixture?
-
A.
5 liters
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B.
10 liters
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C.
15 liters
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D.
20 liters
Solution
Total parts = 1 + 5 = 6. Sugar = (1/6) * 60 = 10 liters.
Correct Answer:
B
— 10 liters
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Q. In a mixture of 80 liters, the ratio of milk to water is 5:3. How much water is in the mixture?
-
A.
30 liters
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B.
35 liters
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C.
40 liters
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D.
45 liters
Solution
Total parts = 5 + 3 = 8. Volume of water = (3/8) * 80 = 30 liters.
Correct Answer:
B
— 35 liters
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Q. In a mixture of 90 liters, the ratio of vinegar to water is 1:4. How many liters of vinegar are there?
-
A.
18 liters
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B.
20 liters
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C.
15 liters
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D.
12 liters
Solution
Vinegar = (1/5) * 90 = 18 liters.
Correct Answer:
A
— 18 liters
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