By selling an article for ₹1,200, a shopkeeper suffered a loss of 20%. What was the cost price of that article?
By selling an article for ₹1,200, a shopkeeper suffered a loss of 20%.
Let's assume the cost price of the article is '100y'.
selling price of the article= 100y of (100-20)%
1200 = 100y of 80%
$$1200=100y\times\frac{80}{100}$$
$$15=y$$
Cost price of that article = 100y
= $$100\times15$$
= ₹1500
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