1. A retailer buys a second-hand gadget for 1200 and spends 300 on its repairs. He then marks up the total cost by 20% and offers a discount of 10% to the customer. What is his actual profit percentage?
A) 10%B) 12%C) 8%D) 9.5%
✓ Correct Answer: Option C
Explanation: <strong>Solution:</strong><br>
Total Cost Price (CP) = Purchase Price + Repairing Cost<br>
$CP = 1200 + 300 = 1500$<br>
Marked Price (MP) = CP + 20% of CP = $1500 \times 1.2 = 1800$<br>
Selling Price (SP) after 10% discount = $1800 \times 0.9 = 1620$<br>
Profit = SP - CP = 1620 - 1500 = 120<br>
Profit Percentage = $$\frac{120}{1500} \times 100 = 8%$$