Question
A shopkeeper sold an article after giving a discount of
20% and made a profit of Rs. 70. Find the marked price of the article if cost price of the article is Rs. 850.Solution
Selling price of the article = 850 + 70 = Rs. 920 Marked price of the article = 920/0.8 = Rs. 1150
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The technique of growing plants with their roots suspended in air without soil is called
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