Hello Simran .
The answer of your question is 25%.
To explain let cost of one apple is X 80 apple cost =80x.
20 apple cost =20x.
Profit%= (sp-cp)cp *100
.
Sp=80x+20x.
Cp=80x
Profit%=(80+20-80)X/80x*100 ===. 25%.
Hope you get it.
Good luck
Question : By selling 100 notebooks, a shopkeeper gains the selling price of 20 notebooks. What is his gain percentage?
Option 1: 62.4%
Option 2: 22.5%
Option 3: 50.4%
Option 4: 25%
Question : By selling 35 articles, a shopkeeper gains the selling price of 15 articles. Find his gain percentage.
Option 1: 88%
Option 2: 40%
Option 3: 75%
Option 4: 60%
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