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Question 1
In what ratio must a mixture of 20% milk strength be mixed with that of 60% milk strength so as to get a new mixture of 25% milk strength?
Question 2
8 litres of water is added to 32 litres of a solution containing 20%, of alcohol in water. What is the approximate concentration of alcohol in the solution now?
Question 3
A dishonest milkman buys milk at Rs 20 per litre and adds 1/3 of water to it and sells the mixture at Rs 25 per litre. His gain is
Question 4
640 ml of a mixture contains milk and water in ratio 6:2. How much of the water is to be added to get a new mixture containing half milk and half water?
Question 5
In a bag there are 150 notes which values are Rs. 100 and Rs. 50. If total value of all notes is Rs. 9000 then what is number of Rs. 100 notes?
Question 6
Three bottles of equal capacity contain mixture of milk and water in ratio 2 : 3, 3:5 and 4 : 5 respectively. These three bottles are emptied into a large bottle. What is the ratio of milk and water respectively in the large bottle?
Question 7
50 litres of mixture of alcohol and water is the ratio of 1 : 4 respectively. If 10 litres of mixture is taken off and replaced with 10 litres of water. Then what is the new ratio of alcohol and water respectively?
Question 8
A trader had 630 kgs of rice. He sold a part of it at 15% profit and the rest at 8% profit, so that he made a total profit of 12%. How much rice (in kgs) did he sell at 8% profit?
Question 9
What quality of wheat at Rs 9.30 per kg is mixed with another quality at a certain rate in the ratio 8 : 7. If the mixture so formed be worth Rs 10 per kg , what is the rate per kg of the second quality of wheat?
Question 10
A mixture of 20 litre of spirit and water contains 10% water. After adding 5 litre of water, what is the percentage of Water in the new mixture?
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Sep 25SSC & Railway
