Let CP of 1 article = 1. CP of 8 = 8. SP of 10 = 8, so SP of 1 = 0.8. Loss = 1 - 0.8 = 0.2 = 20%.

Let number = 100. After 50% increase: 150. After 50% decrease: 150 × 0.5 = 75. Net change = (75-100)/100 × 100 = -25%.

SP = CP × (1 + profit%) = 800 × 1.35 = 1080.

SI = (P × R × T)/100 = (5000 × 8 × 3)/100 = 1200. Total = 5000 + 1200 = 6200.

Value after 2024 = 10 × 1.12 = 11.2 lakhs. Value after 2025 = 11.2 × 1.08 = 12.096 ≈ 12.09 lakhs.

Equivalent discount = 100 - (90 × 80)/100 = 100 - 72 = 28%.

MP = 8000 × 1.60 = 12,800. SP = 12,800 × 0.75 = 9,600. Profit = 9,600 - 8,000 = 1,600. Profit% = (1,600/8,000) × 100 = 20%.

CP = 100, MP = 160, SP = 160 × 0.8 = 128. Profit% = 28%.

After 15% discount: 2000 × 0.85 = 1700. After 10% discount: 1700 × 0.9 = 1530.

When a man sells an item at a loss, the selling price is calculated as a percentage reduction from the cost price. Here, we lose 15% of the original value.

Step 1: Identify the given information

Cost Price (C.P.) = ₹1200

Loss percentage = 15%

Step 2: Calculate the loss amount

Loss amount is 15% of the cost price:

Step 3: Calculate the selling price

Selling price is obtained by subtracting the loss from the cost price:

Alternative method (direct formula):

When there is a loss of 15%, the selling price is 85% of the cost price:

Answer: The selling price is ₹1020 (Option D)