Question
A retailer provides 1 article free on the purchase of 4
articles. Calculate the discount percentage given by the retailer.Solution
ATQ, Let the marked price of each article be Rs. 'y'. Marked price of 4 articles = 4 * y = Rs. '4y' Selling price of 5 articles (since 1 article is free) = 4y Selling price of 1 article = 4y / 5 = Rs. (4/5)y Discount per article = y - (4/5)y = (1/5)y Discount percentage = [(1/5)y / y] × 100 = 20%
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