Let the normal price of the TV be denoted as $x$.

Since the price is reduced by 30%, the sale price is 70% of the normal price. So we can write the following equation:

$0.7x = 280$

To find the normal price, divide both sides of the equation by 0.7:

$x = \frac{280}{0.7} = 400$

Thus, the normal price of the TV is £400.

Would you like a further explanation or have any other questions?

Here are 5 related questions for practice:

1. If another item in the sale is priced at £350 after a 25% reduction, what is the original price?
2. If a £500 laptop is on sale with a 20% discount, what is the sale price?
3. A dress costs £150 after a 40% discount. What was the original price?
4. How much would a £1000 item be after a 30% discount?
5. If an item is sold for £210 after a 30% discount, what was the original price?

Tip: To find the original price after a discount, divide the sale price by the percentage of the original price that remains.