GCSE Maths - Reverse Percentages - Calculating The Cost Before The Discount #96

The video tutorial explains reverse percentages, demonstrating how to find original prices after percentage changes. It covers examples like house price increase, sunglasses sale, car depreciation, railway ticket price increase, and dress sale. The key technique involves calculating the value of 1% to determine original prices.

If a house's price increased by 15% to £207,000, what was its original price?

• £200,000

• £210,000

• £190,000

• £180,000

Zara bought sunglasses for £72 after a 20% discount. What was the original price?

• £95

• £90

• £80

• £85

A car's value decreased by 8% to £12,880. What was its original price?

• £13,500

• £14,000

• £14,500

• £15,000

A railway ticket's price increased by 5%, resulting in a £42.50 increase. What was the original price?

• £875

• £850

• £825

• £800

After an 18% summer sale, a dress's price was reduced by £8.10. What was the original price?

• £40

• £42

• £48

• £45

If a product's price increased by 5% and the increase was £42.50, what is the new price?

• £900.00

• £892.50

• £910.00

• £920.00

During a sale, a dress's price was reduced by 18% to £8.10. What is the percentage value of £1?

• 0.45%

• 0.50%

• 0.55%

• 0.60%