A lady shopkeeper allows her customers 10% discount on the marked price of the goods and still gets a profit of 25%. What is the cost price of a fan for her marked at Rs 1250?

Explanation

To find the cost price of the fan, we can follow these steps:

### Step 1: Calculate the Discount Amount
The marked price (MP) of the fan is Rs 1250. The shopkeeper allows a discount of 10%.

**Formula for Discount Amount:**
\[
\text{Discount Amount} = \frac{\text{Discount Percentage}}{100} \times \text{Marked Price}
...