1. Three pots have same volume. The ratios of milk and water in the 1st,2nd and 3rd are respectively 3:2, 7:3 and 11:4, if the milk of all the three pots is mixed, then the final ratio of milk and water in the mixture ?
A. 61:29 B. 61:39 C. 21:9 D. 9:21 E. None
2. How much water must be added to 20 L of a 30% spirit solution to dilute it to a solution that has 25% spirit ?
3. A mixture contains alcohol and water in the ratio 4:3. If 7 L of water is added to the mixture , the ratio of alcohol and water becomes 3:4. Find the quantity of alcohol in the mixture.
4. Rice is mixed in the ratio 2:3 and sold at Rs 22/KG , resulting in a profit of 10%. If the cost of the smaller quantity be Rs 14/Kg , the cost per KG of the larger quantity is
A. Rs24 B. RS23 C. RS 25 D. Rs 28
5 A merchant buys two types of tea A and B at Rs 24 and Rs 12 per Kg respectively. He mixes them in the ratio 5:7 and sells the mixture at Rs 18.70 per kg. Find the profit.
A.8% B. 10% C. 12% D.15%