Flashcards
Maths - Percentages
Cards in this deck (8)
- 1Maths Revision CardsLevel 1
- 2I borrow £3000 for 4 months at an interest rate of 2% per month, How much interest do I pay?3000 shared by 100 = 30
20 × 2 = £600 - 3The population of a town increases from 22,500 by 5% What is the new population?5% = 0.05
Multiplier for an increase of 5% = 1.05
22,500 × 1.05 = 24,075 - 4A car decreases (depreciates) in value from £18,000 by 15% What is it now worth?15% = 0.15
Multiplier for a decrease of 15% = 0.85
18,000 × 0.85 = £15,300 - 5A house was worth £135,000 last year but is now worth £150,000 Calculate the percentage increaseWork out the actual increase
15,000 - 135,000 = 15,000
work out this increase as a percentage of the original value
15,000
-------- = 0.11111 . . . . .
135,000 = 11% - 6A coat price has decreased by 20% - the price is £250. What is the new price250 divide by 100 times 20 = 50
250 - 50 = 200
new price is £200 - 7The population of a village has decreased by 5%, the population is 7665. What was the population after the decrease?Answer 1,533
- 8The population of a village increased from 3540 by 10% then decreased by 4%. what is the resulting population?3540 × 1.1 × 0.96 = 3738.24
New Population = 3738
Information
- Description
- Includes: Simple Interest, Increases and Decreases, Calculating the original Value & Repeated Percentage Changes
- Created by
- emily pearce
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- History
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- Created by Martha Davies · May 31, 2016
- Copied by emily pearce · Jun 15, 2020
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