Sell 60% at the price of 30% profit, and the price is/kloc-0 /× (1+30% )× 60% = 0.78.
The remaining 40% will be sold at 20% discount, and the price is:/kloc-0 /× (1+30% )× 40 %× 80% = 0.416.
Total selling price = 0.78+0.416 =1.196.
Realized profit: (1.196-1) ×100% =19.6%.
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