Reverse Percentage - Finding Price Before A % Discount
This lesson covers:
- How to find the original value before a percentage change has taken place
- This is sometimes known as 'reverse percentages'
- E.g. 'Kristof is given a 5% pay rise. His new salary is £24,150. What was Kristof's salary before the pay rise?'
Kristof is given a 5% pay rise. His new salary is £24,150
What was Kristof's salary before the pay rise?
£
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In a sale the price of a sofa is reduced by 40%. The sale price is £270.
Work out the price before the sale.
£
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The price of a train ticket from Bristol to Exeter increases by 6%. The new price of the ticket is £15.37.
How much did the ticket cost before the increase?
£
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A PlayStation game is on sale at £45. This is a 10% discount of the normal price.
What was the price of the game before the discount?
£
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A holiday is on sale for £560. This is a 30% discount of the normal price.
What was the price of the holiday before the discount?
£
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A garage that sells cars offers a 15% discount when paying cash. Dave takes advantage of the deal and pays £6800 cash for a car.
Calculate the non-cash price of the car.
£
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In a sale, normal prices are reduced by 25%. The sale price of a dress is £31.50
Calculate the normal price of the dress.
£
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A fish tank begins to leak and loses 35% of its water. There are now 247 litres of water in the fish tank.
How much water was in the fish tank before it leaked?
L
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