Q1. Niel bought 30kg rice at the rate of Rs 9 50 kg and 40kg of rice at the rate of Rs 8 50 kg and mixed them She told the mixture at the rate of Rs 8 90 kg Find the total profit or loss in the whole transaction

Q2. A and B are two alloys in which ratios of Zinc and Sulphur are 4 5 and 6 7 respectively If these equally amount of two alloys are melted and made alloy C What will be the ratio of Zinc and Sulphur in alloy C

Q3. Of the two varieties of rice available variety A is bought at Rs 32 per kg and variety B at Rs 80 per kg Two varieties of rice are mixed together in the respective ratio of 8 5 and the mixture is sold at Rs 72 per kg What per cent of profit approximately the seller receives

Q4. Two barrels contain a mixture of ethanol and gasoline The content of the ethanol is 60 in the first barrel and 30 in the second barrel In what ratio must the mixtures from the first and the second barrels be taken to form a mixture containing 50 ethanol

Q5. 12 kg of rice costing Rs 30 per kg is mixed with 8 kg of rice costing Rs 40 per kg The average per kg price of mixed rice is