Final answer:
The marked price of the TV is Rs 15500, which has been calculated by dividing the discounted price (Rs 13950) by 0.9, to account for the 10% discount applied to the original price.
Step-by-step explanation:
To calculate the marked price of the TV before the discount, we can use the formula for percentage decrease, which states the final price after a discount is equal to the marked price minus the discount amount. If a 10% discount is provided, the discount amount can be represented as 10% of the marked price. Let's represent the marked price as 'P'. Thus, we have the equation:
13950 = P - (0.10 × P)
Where 13950 is the final price after the discount, P is the marked price, and 0.10 × P is the discount. Solving for P gives us:
13950 = 0.9P
P = 13950 / 0.9
P = 15500
So the marked price of the TV is Rs 15500.