Question

if the cost price of 10 articles is equal to the selling price of 9 articles then find the gain percent ​

Answer 1

Step-by-step explanation:

10cp =9sp

cp/sp =9/10

= profit%=1/9×100=11whole 1/9

Answer 2

Answer:

let the cp of 1 article = x

therefore ,

cp of 10 articles = 10x

since,

sp of 9 articles = 10x

sp of 1 article= 10x/9

sp of 10 article = 100x/9

now,

gain amount =sp - cp

=(100x/9)-10x

=10x/9

now ,

gain percent = (gain/cp)*100%

= {(10x/9)/10x}*100%

=11.11%