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A 60% spirit solution is mixed with r% spirit solution in the ratio 1 : 3 such that a s% spirit solution is obtained. When a (s/3)% spirit solution is mixed with 55% spirit solution in equal ratio, an (r/2)% spirit solution is obtained. Which of the following can be determined? (A) Value of ‘r’ (B) Value of ‘s’ (C) Volume of the 60% spirit solution mixed initially (D) If 9 liters of r% spirit solution was mixed initially, what was the volume of the s% spirit solution thus obtained?
Which of the following statements is/are correct? The end of Vijaynagar empire, Mysore was gradually transformed into an autonomous principality by the Wodeyar dynasty. Tipu Sultan was an ordinary soldier in the Mysore army and gradually rose to prominence. Haider Ali modernized his army with French experts who trained an efficient infantry and artillery and infused European discipline into the Mysore army. Select the correct code from below.
From 600 ml of 40% solution of spirit, some quantity of solution is replaced by 16% solution of spirit. If the mixture so obtained contains 24% solution of spirit, how much solution of 40% spirit was replaced?
A vessel contains spirit and water solution in which there is 80 litres pure spirit. The ratio of spirit and water is 16 : 7. If 46 litres of this solution is taken out and 15 litres of water is added, the quantity of water in the resultant solution is what percent of that of spirit?
A container contains 72 L spirit. Rakesh wants to dilute it, so he draws out 12 L spirit and replaces it with same quantity of water and repeats this process one more time. What is the ratio of spirit and water in the final mixture and the quantity of spirit in the resultant mixture?
30 litres of spirit was mixed with 150 litres of whisky, 30 litres of this mixture was sold and some more quantity of whisky and spirit was added in the respective ratio of 5 : 6. If the final quantity of whisky was 500% of the initial quantity of spirit, what was the quantity of spirit that was added?
If 500 ml of normal saline is to be infused in 4 hours, then how many drops need to be infused per minute? The drop factor is 20 mega drops per ml.
If 500 ml of 5% dextrose is to be infused in 5 hours, then how many drops per minute should be infused? (drop factor = 15 drops per ml)
A butler stole wine from a shop containing 50% spirit, then he fills it up with different wine containing 30% spirit. Thus there was only 45% spirit in the new mixture. How much of the original wine did he steal?  
Two vessels A and B contain spirit and water in the ratio 3 ∶ 4 and 5 ∶ 8 respectively. Their contents are mixed in the ratio 7 ∶ 13 in  vessel C. In the new solution, how much spirit should be mixed to get a solution containing spirit and water in the ratio 8:13?