There are four people who are selling an item to each other. Harish sells an article at 20% profit to Bala, Bala sells it to Catherine at 10% profit. Catherine sells it to Dilbag at Rs. 16 profit. The difference between the cost price of the article with Dilbag and cost price of that with Harish was Rs. 500. How much did Bala pay to Harish for the article?
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