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Option 4 : Rs. 50,000
Given:
Discount = 20%
Amount earned in whole transaction = Rs. 5000
Formula:
Selling price = Marked Price × (100 – Discount%)/100
Calculation:
Let the marked price of the laptop be x,
Cost price of laptop = 80% of x = 0.8x
⇒ Amount earned by him resting the laptop = 0.4x
Selling price of the laptop = 0.5x
Profit = Selling price of the laptop + amount earned by renting - cost price of the table
⇒ 5000 = 0.5x + 0.4x - 0.8x
⇒ 5000 = 0.9x - 0.8x
⇒ 0.1 x = 5000
⇒ x = Rs. 50,000
∴ The marked price of the laptop is Rs. 50,000.
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