Jasmine allows 4% discount on the marked price of her goods and still earns a profit of 20%. What is the cost price of a shirt for her marked at Rs 850?

Explanation

To find the cost price of the shirt marked at Rs 850, we can follow these steps:

### Step 1: Calculate the Discount
The discount given by Jasmine is 4% of the marked price (MP).

\[ \text{Discount} = \frac{4}{100} \times 850 = 34 \]
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