Dear Readers,
Question1: A vessel contains 60 liters of a mixture of milk and water in the ratio 3:2. How many liters of water should be added to the mixture so that the ratio becomes 2:3?
a) 15 liters
b) 18 liters
c) 20 liters
d) 25 liters
Question2: In what ratio should two types of alcohol costing Rs. 70 per liter and Rs. 90 per liter be mixed to obtain a mixture worth Rs. 84 per liter?
a) 2:3
b) 3:2
c) 1:2
d) 2:1
Question3: A container has 20 liters of a mixture containing milk and water in the ratio 3:2. How much of the mixture should be replaced with pure milk so that the ratio becomes 4:1?
a) 8 liters
b) 10 liters
c) 12 liters
d) 16 liters
Question4: A 50-liter mixture of milk and water contains 10% water. How much water should be added to the mixture so that the percentage of water becomes 20%?
a) 5 liters
b) 7.5 liters
c) 10 liters
d) 15 liters
Question5-: In what ratio should a trader mix two types of tea costing Rs. 160 per kg and Rs. 200 per kg so that the mixture is worth Rs. 180 per kg?
a) 2:3
b) 3:2
c) 1:2
d) 2:1
Question6-: A mixture contains alcohol and water in the ratio 4:1. How much of the mixture should be taken out and replaced with pure alcohol so that the ratio becomes 2:3?
a) One-fourth
b) One-third
c) One-fifth
d) One-sixth
Question7-: A 60-liter mixture of milk and water contains 30% water. How much of the mixture should be replaced with pure milk so that the percentage of water becomes 20%?
a) 12 liters
b) 15 liters
c) 18 liters
d) 24 liters
Question8-: A container has 40 liters of a mixture containing milk and water in the ratio 5:3. How much of the mixture should be taken out and replaced with pure milk so that the ratio becomes 2:3?
a) 10 liters
b) 12 liters
c) 16 liters
d) 20 liters
Question9: A mixture of two liquids A and B is in the ratio 3:2. If 5 liters of liquid A is replaced with 5 liters of liquid B, the ratio becomes 4:5. What is the initial quantity of the mixture?
a) 15 liters
b) 20 liters
c) 25 liters
d) 30 liters
Question10: A 120-liter mixture contains milk and water in the ratio 7:3. How much of the mixture should be taken out and replaced with pure milk so that the ratio becomes 2:3?
a) 40 liters
b) 50 liters
c) 60 liters
d) 70 liters
Answers:
Q1-c
Q2-b
Q3-b
Q4-c
Q5-a
Q6-d
Q7-a
Q8-d
Q9-c
Q10-b
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MAHENDRA GURU