Let the cost PRICE of 1 ARTICLE = x

Let the cost price of 1 article = x

Let the cost price of 1 article = xFind the cost price of the 15 articles:

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15X

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15xFind the selling price of the 15 articles:

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15xFind the selling price of the 15 articles:15 articles = 12x

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15xFind the selling price of the 15 articles:15 articles = 12xFind the profit/loss:

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15xFind the selling price of the 15 articles:15 articles = 12xFind the profit/loss:Since the selling price is LESS than the cost price

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15xFind the selling price of the 15 articles:15 articles = 12xFind the profit/loss:Since the selling price is less than the cost price⇒ It is a loss

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15xFind the selling price of the 15 articles:15 articles = 12xFind the profit/loss:Since the selling price is less than the cost price⇒ It is a lossLoss = 15x - 12x = 3x

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15xFind the selling price of the 15 articles:15 articles = 12xFind the profit/loss:Since the selling price is less than the cost price⇒ It is a lossLoss = 15x - 12x = 3xFind the loss percentage:

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15xFind the selling price of the 15 articles:15 articles = 12xFind the profit/loss:Since the selling price is less than the cost price⇒ It is a lossLoss = 15x - 12x = 3xFind the loss percentage:Loss percentage = 3x/15x x 100 = 20%

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15xFind the selling price of the 15 articles:15 articles = 12xFind the profit/loss:Since the selling price is less than the cost price⇒ It is a lossLoss = 15x - 12x = 3xFind the loss percentage:Loss percentage = 3x/15x x 100 = 20%Answer: He made a loss of 20%

Let the cost price of 1 article = xFind the cost price of the 15 articles:15 articles = 15xFind the selling price of the 15 articles:15 articles = 12xFind the profit/loss:Since the selling price is less than the cost price⇒ It is a lossLoss = 15x - 12x = 3xFind the loss percentage:Loss percentage = 3x/15x x 100 = 20%Answer: He made a loss of 20%Please marrk as brainliest.