Question

the cost price of 10 articles is equal to the selling price of 8. find the profit or loss percent.

Answer 1

let cp of 10 articles be rs1000
Atq,
cp of 10 articles=sp of 8 articles
1000=1000
cp of 1 article =1000/10=100
sp of 1 article=1000/8=125
sp greater than cp=profit
p=sp-cp
=125-100
p=25
p%=p/cp×100
=25/100×100
p%=25%