Considering the three kinds of tea are A,B, and C. The price of kind A=Rs‌800‌per‌kg. The price of kind B=Rs‌500‌per‌kg. The price of kind C=Rs‌300‌per‌kg. They were mixed in the ratio of 2:3:5
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of the total mixture is sold for Rs‌700‌per‌kg. Assuming the ratio of mixture to A=12‌kg, B=18‌kg, C=30‌kg. The total cost price is 800×12+500×18+300×30=Rs‌27600. Selling
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which is 10‌kg for Rs‌700‌per‌kg the revenue earned is Rs‌7000. In order to have an overall profit of 50‌percent on Rs‌27600. These selling price of the 60kgis Rs‌27600×1.5=Rs‌41400. Hence he must sell the remaining 50‌kg mixture for Rs‌41400−Rs7000=34400 Hence the price per kg is