Question : The cost price of an article is decreased by 10% and then increased by 20%. If the final price is INR 540, then the original cost price is:

Option 1: INR 500

Option 2: INR 650

Option 3: INR 550

Option 4: INR 600

Question : If two LED TVs and one mobile phone cost INR 31,000, while two mobile phones and one LED TV cost INR 35,000, then the value of one mobile phone is:

Option 1: INR 13,500

Option 2: INR 12,500

Option 3: INR 13,000

Option 4: INR 12,000

Question : The length, breadth, and height of a hall are 10 m, 20 m, and 15 m, respectively. Find the cost of whitewashing the walls of the inside of the hall and ceiling, at the rate of INR 10.20 per m².

Option 1: INR 13,394

Option 2: INR 11,220

Option 3: INR 15,320

Option 4: INR 16,542

Question : A shopkeeper sells an article at $13 \frac{1}{2}\%$ loss. If he sells it for INR 1,274 more, then he gains $11\%$. What is the cost price of the article?

Option 1: INR 4,874

Option 2: INR 4,800

Option 3: INR 5,200

Option 4: INR 5,274

Question : The marked price of a ceiling fan is INR 4,200 and the shopkeeper allows a discount of 5% on it. If his profit is 14%, then the cost price of the fan is:

Option 1: INR 3,200

Option 2: INR 3,800

Option 3: INR 3,000

Option 4: INR 3,500