The cost price of an article is Rs. 390. If it is to be sold at a profit of 3.12 per cent, how much would be its approximate selling price ?
Profit obtained in selling the article at 3.12%
= $$\frac{3.12}{100} * 390 \approx$$ Rs. 12
=> Selling price = 390 + 12 = Rs. 402
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