The cost price of 10 articles is equal to the selling price of 9 artic

1.	The cost price of 10 articles is equal to the selling price of 9 articles. Find the profit percent.
Answer» Cost price of 10 article = selling price of 9 article Let CP of 1 article = Rs. x Selling price of 9 article = 10x Selling price of 1 article = \(\frac{10x}{9}\) Hence, Profit = \(\frac{10x}{9}\) - x = \(\frac{x}{9}\) = Gain% = \(\frac{gain}{cost\,price}\)x 100 = \(\frac{\cfrac{x}{9}}{x}\)x 100 = \(11\frac{1}{9}\)%

The cost price of 10 articles is equal to the selling price of 9 articles. Find the profit percent.

Answer»

Cost price of 10 article = selling price of 9 article

Let CP of 1 article = Rs. x

Selling price of 9 article = 10x

Selling price of 1 article = \(\frac{10x}{9}\)

Hence,

Profit = \(\frac{10x}{9}\) - x = \(\frac{x}{9}\)

= Gain% = \(\frac{gain}{cost\,price}\)x 100 = \(\frac{\cfrac{x}{9}}{x}\)x 100 = \(11\frac{1}{9}\)%