Top 100 Quantitative Aptitude Questions and Answers

Important Aptitude Questions with Answers

Q.71. How many kilograms of Red chili powder costing Rs. 9 per kg must be mixed with 27 kg of Red chili powder costing Rs. 7 per kg so that there may be a gain of 10% by selling the mixture at Rs. 9.24 per kg?

(A) 63

(B) 36

(C) 42

(D) 32

Q.72. A can contains a mixture of two liquids A and B in the ratio 7 : 5. When 9 L mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. Litres of liquid A contained by the can initially was 

(A) 10

(B) 20

(C) 21

(D) 25

Q.73. Sugar worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs. 153 per kg, the price of the third variety per kg will be:

(A) Rs. 185.50

(B) Rs. 195.50

(C) Rs. 165.50

(D) Rs. 175.50

Q.74. A container has 80 L of milk. From this container 8 L of milk was taken out and replaced by water. The process was further repeated twice. The volume of milk in the container after that is 

(A) 58.23 L

(B) 85.23 L

(C) 58.32 L

(D) 85..32 L

Q.75. A can contains a mixture of two liquids Milk and Water is the ratio 7 : 5. When 9 litres of mixture are drawn off and the can is filled with Water, the ratio of Milk and Water becomes 7 : 9. How many litres of liquid Milk was contained by the can initially?

(A) 12

(B) 15

(C) 21

(D) 26

Q.76. 15 L of mixture contains alcohol and water in the raito 1 : 4. If 3 L of water is mixed in it, the percentage of alcohol in the new mixture will be

(A) 15

(B)

(C) 17

(D)

Q.77. How much water be added to a bucket which contains 40 L of milk at the cost price of Rs. 3.50 per litre, so that the cost of milk reduced to Rs 2 per litre ?

(A) 25 L

(B) 28 L

(C) 30 L

(D) 35 L

Q.78. 3 containers has milk and water in ratio 2 : 1, 3 : 1, 3 : 2 respectively and all three containers are emptied into a bigger container, then ratio of milk in bigger container.

(A) 121 : 59

(B) 59 : 121

(C) 120 : 60

(D) None of these

If you face any problems in mixture and alligation questions, you can ask me in the comment section. Visit on the next page for more practice.

Q.79. A milk seller has a milk of Rs. 100 per litre. In what ratio should water be mixed in that milk, so that after selling the mixture at Rs 80 per litre, he may get a profit of 50%?

(A) 7 : 8

(B) 7 : 9

(C) 9 : 7

(D) 7 : 5

Q.80. A container has 60 L of milk, from this container, 4 L of milk is taken out and replaced with water. If this process is repeated 3 times, then quantity of milk in container left 

(A) 568.7 L

(B) 754.6 L

(C) 48.78 L

(D) None of these

You can ask me in the comment section anything related to quantitative aptitude if have any doubt. Go to the next page for more practice.