Question

12. Find the gain percent if cost price of 9 articles is equal to the selling price of 5 articles.
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Answer 1

Answer:

80%

Step-by-step explanation:

hope picture will useful for you

Answer 2

Answer:

The profit is 80%

Step-by-step explanation:

Let x = cost price of an article

Let y = selling price of an article

5y = 9x

y = (9/5)x

y = 1.8x

so selling price is 0.8 times more than the cost price

profit = 0.8 * 100 = 80%

The profit is 80%