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| 1. |
A trader mixes three varieties of refined oil costing Rs. 100, Rs. 40 and Rs. 60 per litre in the ratio 2 : 4 : 3, and sells the mixture at Rs. 66 per litre. What percentage of profit does he make? |
| A. | 12% |
| B. | 10% |
| C. | 9% |
| D. | 8% |
| Answer» C. 9% | |