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A trader mixes three varieties of refined oil costing Rs.40 and Rs.60 per liter in the ratio 2:4:3 in terms of liter, and sell the mixture at Rs.66 per liter. What percentage of profit does he make?

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The UGC NET General Paper on Teaching & Research Aptitude is an exam designed to test the teaching and research skills of Indian teachers to determine their eligibility for college lectureship. 
 


A trader mixes three varieties of refined oil costing Rs.40 and Rs.60 per liter in the ratio 2:4:3 in terms of liter, and sell the mixture at Rs.66 per liter. What percentage of profit does he make?






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