Correct Answer - Option 2 : 20%
Given-
Selling price of 15 articles = cost price of 12 articles
Formula Used-
Loss% = (CP - SP)/CP × 100 [where CP = Cost Price and SP = Selling Price]
Calculation-
Let selling price of each article = x
According to Question-
15x = 12 CP [where CP = Cost Price of each article]
⇒ CP = 15x/12
Loss% = (15x/12 - x)/(15x/12) × 100
⇒ (x/4)/(5x/4) × 100
⇒ 1/5 × 100
⇒ 20%
∴ The loss% in whole transaction is 20%
