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
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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
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