Question
The marked price of a book is Rs. 2000 and its cost
price is 50% of the marked price. If x% discount is allowed, the profit becomes 20%. Find x.Solution
ATQ, Marked price = 2000 Cost price = 2000 × 50/100 = 1000 Profit = 20% Selling price = 1000 × 120/100 = 1200 1200 = 2000 × (100 – x)/100 1200 = 20(100 – x) 1200 = 2000 – 20x 20x = 800 x = 40
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