Explanation

Since Ali gets a 25% profit by selling the article for 250 rupees, we can set up the equation:

Selling Price = Original Price + Profit

where Profit = 25% of Original Price

Substitute the values:

250 = Original Price + (25% of Original Price)

To find the original price, let's convert the percentage to a decimal:

25% = 0.25

Now, rewrite the equation:

250 = Original Price + (0.25 × Original Price)

Combine like terms:

250 = Original Price × (1 + 0.25)

Simplify:

250 = Original Price × 1.25

Now, divide both sides by 1.25:

Original Price = 250 ÷ 1.25

Original Price = 200

So, the original price of the article is 200 rupees.