Question

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

Answer 1

Answer:

100/9%

Step-by-step explanation:

let cost of 1 article = X

Then, Cost of 10 article = 10X

Selling price of 9 article = 10X ,

Selling Price of 1 article = 10X/9,

Selling Price of 10 article = 10X + 10X/9 = 100X/9.

Profit = Selling Price - Cost = 100X/9 - 10X = 10X/9

Profit percent = (profit/cost) × 100 = (10X/9)/10X × 100 = 100/9% .