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A trader mixes three varieties of gro...

A trader mixes three varieties of groundnuts costing Rs. 50, Rs. 20 and Rs. 30 per kg in the ratio 2 : 4 : 3 in terms (it weight, and sells the mixture at Rs. 33 per kg. What percentage of profit does he make? `8%` b. `9%` c. `10` % d. none of these

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