Question

6. The selling price of 4 articles is the same as the cost price of 5 articles on selling
one article, the profit gained by the shopkeeper is how many times that of its cost
price?​

Answer 1

Answer:

4x=5y

x=selling price

y=cost price

4x=5y

x=5y/4

profit=selling price - cost price

profit=x-y

profit=(5y/4)-y

profit=5y-4y/4

profit=y/4

thus the profit gained on selling one article is 1/4 times the cost price or in other words, the cost price is 4 times the profit

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