Question

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*The cost price of 10 articles is equal to the selling price of 9 articles. Find his profit/loss percent.(✿ ♥‿♥)​

Answer 1

Step-by-step explanation:

Let ‘x’ be the cost price of 10 articles.

Cost price of unit article = x/10

Selling price of 9 articles = x

Selling price of unit article = x/9

Gain per unit article = (x/9) - (x/10)

= x(1/9–1/10) = x (1/90) = x/90

Percentage of gain (%) = (Gain/Cost)100

= ((x/90)/(x/10))100 = (x/90)(10/x)100

= (10/90)100 = 100/9 = 11.111

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Answer 2

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