The cost price of 30 articles is equal to the selling price of 20 articles. Then, what is his percent profit? *
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Step-by-step explanation:
cp x 30=sp X 20
cp/sp= 20/30
CP/SP =2/3
profit =SP-CP
=3-2
= 1
profit%= profit /CP X 100
= 1/2 X 100
=50%
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