Year 10
Foundation
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Lesson details
Key learning points
- In this lesson, we will learn how to calculate reverse percentages. We will learn how to take a given quantity as a percentage of a whole, and use it to calculate the value of the whole.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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4 Questions
Q1.
An item was bought for £40 then sold for £50. The selling price was a percentage increase of 20%.
True
Q2.
An item was bought for £40 then sold for £60. Find the percentage change.
20%
40%
5%
Q3.
An item was bought for £80 then sold for £50. Find the percentage change.
130%
30%
60%
Q4.
A clothes shop normally sells their goods at 80% above cost price. In a sale, the shop reduces the prices by 25%. What percentage profit does the shop make on clothes sold in the sale?
100%
180%
75%
4 Questions
Q1.
If 20% of a number is 32, find 100%
320
62.5
640
Q2.
If 7% of a number is 14, find 100%
100
140
70
Q3.
A shop has a sale with 10% discount on all items. If a coat costs £45 in the sale. What was its original price?
£40
£49.50
£55
Q4.
Tim is a car salesman. He bought a car for £5000. Currently he is holding a sale with 35% off the price of all cars. Tim wants to sell the car so that he makes a 10% profit on the price he paid. How much should Tim advertise the car for?
£3461.54
£5500
£7250