coffee costing `450` per kg was mixed with chicory costing `225` per kg in the ratio `5:2` for a certain blend.if:the mixture was sold at `405` per kg; find the gain or loss per cent.

Coffe costing Rs. 250 per kg was mixed with chicory costing Rs. 75 per kg in the ratio 5:2 for certain blend. If the mixture with was sold at Rs. 230 per kg, find the gain or loss per cent .

A shopkeeper mixes tow varieties of tea-one costing Rs.75 per kg and the other costing Rs.50 per kg in the ratio 3:2. If he sells the mixed variety at Rs.62.400 per kg,find his gain or loss percent.

A company blends two varieties of tea from two different tea gardens, one variety costing Rs. 20 per kg and the other Rs. 25 per kg in the ratio 5 : 4. He sells the blended tea at Rs. 23 per kg. Find his profit or loss percent. a. Profit of 3.5% b. no profit, no loss c. Profit of 5% d. Loss of 5%

30 kg of rice costing Rs.50 per kg mixed with 20kg of rice costing Rs.60 kg. What is the average cost of the mixture per kg ?

A product blends two qualities of rice.One costing Rs.12.50 per kg and the other costing Rs.14 per kg in the ratio 4:5. Find his profit percent if he sells the mixture at the rate of Rs.16 per kg.