A man sold an article for Rs. 495 and gained 10% on it. What was the cost price of the article?

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To determine the cost price of the article, we can use the formula for calculating cost price when the selling price and profit percentage are known. The formula is given by:

Cost Price (CP) = Selling Price (SP) / (1 + Profit Percentage)

In this scenario, the selling price (SP) is Rs. 495 and the profit percentage is 10%. To convert the profit percentage into decimal form, we divide by 100:

Profit Percentage = 10% = 10 / 100 = 0.10

Now, we can substitute these values into the formula:

CP = 495 / (1 + 0.10) = 495 / 1.10

Now, let’s calculate the cost price:

CP = 495 / 1.10 = 450

Therefore, the cost price of the article is Rs. 450.

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