Question

If 9 articles are sold at the cost price of 10 articles, what is profit percentage?​

Answer 1

Answer:

let sp be 100

sp of 9 article= 100

so of 1 article=100/9

let cp be 100

cp of 10 article=100

cp of 1 article=100/10 =10

sp greater than cp so it's profit

100/9-10=10/9

p%= 10/9 ÷ 10 ×100

= 100/9%

Answer 2

Step-by-step explanation:

let the CP of 1 article be= x

cp of 10 articles= 10x

cp of 9 article= 9x

profit = CP - SP

= 10x - 9x

= x

profit (%)= profit/cp ×100

= x/9x × 100

= 100/9

1/99 %