Question
A shopkeeper adds 40% to the cost price of a chair and
sells it after offering a 25% discount on the marked price. If the chair is sold for Rs. 2,100, find the profit he earns.Solution
ATQ,
Let the cost price of chair be Rs. '100b'
Marked price = 1.40 × 100b = Rs. '140b'
Selling price = 0.75 × 140b = Rs. '105b'
So, 105b = 2,100
Or, b = 20
Therefore, required profit = 5 × 20 = Rs. 100
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