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A vendor mixes 20 kg of dal at ₹60/kg with 30 kg at ₹80/kg. He sells the mixture at ₹85/kg. His profit percentage is:

A$15\%$
B$18.33\%$
C$18.06\%$
D$25\%$
Answer & Solution
Correct answer: C. $18.06\%$
Total CP = 20×60 + 30×80 = 1200 + 2400 = ₹3600 for 50 kg. Avg CP = ₹72/kg. Profit % = (85 − 72)/72 × 100 = 13/72 × 100 = 18.06%.
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