Percentages of Amounts and Percentage Change - Worksheets, Questions and Revision

12 original exam-style questions - 5 pages of questions with a full mark scheme - free printable PDF.

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KS3 · Number

KS3.M-N11 Percentages of Amounts and Percentage Change

AQA KS3.M-N11 · Calculators not allowed · about 60 minutes
Name: _______________________________    Date: ____ / ____ / ______
Answer ALL questions. Show all your working.
1
Write down 10% of each amount.
(a)10% of 150(1)
(b)10% of 2,340(1)
(c)10% of 3.6 kg(1)
2
Find 5% of each amount without a calculator.
(a)5% of 80(1)
(b)5% of 1,200(1)
(c)5% of 0.9 m(1)
3
Calculate 15% of each amount. You may use mental or written methods, no calculator.
(a)15% of 220(1)
(b)15% of 60(1)
(c)15% of 1,040(1)
4
A jumper costs 48 pounds. It is reduced by 20%. Calculate the sale price.
(2)
5
A phone tariff rises by 12%. The bill was 25 pounds. Work out the new bill, give your answer to 2 decimal places.
(2)
6
Write each percentage as a multiplier.
(a)Multiplier for an increase of 25%(1)
(b)Multiplier for a decrease of 15%(1)
(c)Multiplier for an increase of 5%(1)
7
Use multipliers to work out each new amount.
(a)Increase 160 by 25%(2)
(b)Decrease 75 by 15%(2)
8
A coat is priced at 85 pounds. It is first reduced by 10% then a further 15% is taken from the reduced price. Calculate the final sale price, giving your answer to the nearest penny.
(4)
9
Reverse percentages. a) A jacket now costs 96 pounds after a 20% increase. Work out the original price before the increase. b) A laptop was first increased by 15% and then reduced by 10%. The final price is 103.50 pounds. Work out the original price before both changes.
(a)A jacket now costs 96 pounds after a 20% increase. Work out the original price before the increase.(2)
(b)A laptop was first increased by 15% and then reduced by 10%. The final price is 103.50 pounds. Work out the original price before both changes.(4)
10
A small town had a population of 12,400 last year. This year the population is 13,860. a) Work out the increase in population. b) Calculate the percentage increase in population, giving your answer correct to 1 decimal place.
(a)Work out the increase in population.(2)
(b)Calculate the percentage increase in population, giving your answer correct to 1 decimal place.(4)
11
A pair of trainers costs 160 pounds. During a sale the price is reduced by 25%. Later the shop increases that reduced price by 20%. Work out the final price after both changes.
(a)Find the price after the 25% reduction.(2)
(b)Starting from the reduced price, work out the final price after increasing by 20%.(4)
12
Stretch problem. During a clearance sale a camera is sold for 246 pounds after a 12% reduction. Work out the original price before the reduction. Give your answer to the nearest penny.
(6)
Mark scheme · KS3.M-N11 Percentages of Amounts and Percentage Change

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10

Question 11

Question 12