MIXTURE MCQ SET 1
1. A canister holds 36 litres of mixture of milk and water in the ratio 3 : 1 . 15 litres of milk is added to the canister . The new ratio of the mixture is:
(a) 12 : 5
(b) 14 : 3
(c) 7 : 4
(d) 9 : 4
Answer: B
2. In a mixture of 24 litres , the ratio of acid to water is 4 : 1 . Another 3 litres of water is added to the mixture . The ratio of acid to water in the new mixture is
(a) 5 : 2
(b) 2 : 5
(c) 3 : 5
(d) 5 : 3
Answer: A
3. 200 litres of a mixture contains milk and water in the ratio 17:3 . After the addition of some more milk to it , the ratio of milk to water in the resulting mixture becomes 7 : 1 . The quantity of milk added to it wasย
(a) 20 litres
(b) 40 litres
(c) 60 litres
(d) 80 litres
Answer: B
4. If 49 litres of a milk solution has 63% milk in it , then how much milk should be added to make the concentration of milk 70% in the solution?
(a) 11 x 13/30 liter
(b) 14 x 7/30 liter
(c) 12 x 11/30 liter
(d) 13 x 1/30 liter
Answer: A
5. An alloy contains copper , zinc and nickel in the ratio of 5 : 3 : 2 . The quantity of nickel (in kg) that must be added to 100 kg of this alloy to have the new ratio 5 : 3 : 3 is:
(a) 8
(b) 10
(c) 12
(d) 15
Answer: B
6. The ratio of milk and water in a vessel is 2 : 3 by chemical process if we extract some water then ratio becomes 5 : 7 and quantity of mixture reduced to 36 litre , then find how much quantity of water was extracted ?
(a) 1.1 ltr
(b) 1.5 ltr
(c) 1.25 ltr
(d) 1.15 ltr
Answer: B
7. A mixture is composed of 11 parts of pure milk and 2 parts of waterย . If 35 litre of water were added to the mixture then the new mixture will contain twice as much pure milk as water , then how many litres of pure milk does the original mixture contain?
(a) 110
(b) 55
(c) 220
(d) 70
ย Answer: A
8. A mixture of acid and water contains 20 percent acid . When 10 litres of water is added to the mixture , then the percentage of acid becomes 15% . What is the original quantity of mixture ?
(a) 25 liters
(b) 40 liters
(c) 35 liters
(d) 30 liters
Answer: D
9. A drink chocolate and milk contains 8% pure chocolate by volume . If 10 litres of pure milk are added to 50 litres of this drink , the percentage of chocolate in the new drink is :
(a) 5 1/3
(b) 6 1/3
(c) 6 2/3
(d) 5 2/3
Answer: C
10. A beaker contains acid and water in the ratio 1 : x . When 50ml of water is mixed in 300 ml of the mixture the ratio of acid to water becomes 2 : 5 . What is the value of x?
(a) 2
(b) 1
(c) 3
(d) 4
Answer: A
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