Question

the selling price of20 articles is equal to the cost price of 23 articles, find the loss or gain percent f each article.

Answer 1

It is 15 % loss.[(23-20)/20]*100

Answer 2

let the cost of one article is = 1 rs.
then selling price of 20 articles is = 20 rs.

because selling price of 20 articles is equal to the cost price of 23 articles.
that's why

cost price of 23 article. = 20 rs


loss = 23-20
= 3
loss percentage = 3/20* 100
= 15%