# RE2 | moonshotai/kimi-k3 | run 2

## Prompt

After a 20% discount, a jacket costs $40. What was the original price? Show your work.

## Response

The original price was **$50**.

**Solution:**

Let \( x \) be the original price. A 20% discount means you pay 80% of the original:

\[ 0.8x = 40 \]

\[ x = \frac{40}{0.8} = 50 \]

**Check:** \( 50 - (0.20 \times 50) = 50 - 10 = 40 \) ✓

Would you like to see how to solve this when the discount is applied in multiple steps, such as a discount plus sales tax?
