Profit per kilo

The trader sells apples at a profit of 20% per kilogram. Today, he decided to reduce the price of apples by 10%. How much profit does the trader have today?

Correct result:

z =  8 %


p1=1+20/100=65=1.2 p2=p110/100 p1=1.210/100 1.2=2725=1.08 z=100 (p21)=100 (1.081)=8%

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