Question

A person sells 10 article for what he paid for 11.find his profit per cent sales?​

Answer 1

Answer:

Explanation:

C.P. of 11 articles = Rs. 10, C.P. of 1 article = Rs.  

11

10

​  

 S.P. of 10 articles = Rs. 11

⇒ S.P. of 1 article = Rs.  

10

11

​  

 

∴ Profit %  

11

10

​  

 

10

11

​  

−  

11

10

​  

 

​  

×100=  

11

10

​  

 

110

121−100

​  

 

​  

×100

=  

110×10

21×11

​  

×100=21%