A person bought some articles at the rate of 5 per rupee and the same number at the rate of 4 per rupee. He mixed both the types and sold at the rate of 9 for 2 rupees. In this business he suffered a loss of Rs. 3. The total number of articles bought by him was `540` b. `545` c. `1080` d. `1090`

Explanation

To solve the problem step by step, we need to determine the total number of articles bought by the person based on the given rates and the loss incurred.

### Step 1: Determine the number of articles bought at each rate
Let’s assume the person bought 180 articles at the rate of 5 articles per rupee and 180 articles at the rate of 4 articles per rupee. This is a convenient number since it is a common multiple of 5 and 4.

### Step 2: Calculate the cost price of the articles
- For the first type of articles (5 per rupee):
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