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Chapter 6 Practice Paper: Percentage — question paper

QuizQuipPractice Series
QQ/S1MATH/CH6

Secondary 1 · Lower Secondary Mathematics (G2 / G3)

Chapter 6 Practice Paper

Percentage

Duration: 40 minutes
Total: 30 marks
Name:
Class:
Register No.:
Date:

READ THESE INSTRUCTIONS FIRST

  • Write your name, class and register number in the spaces at the top of this page.
  • Answer all questions.
  • Section A: write the letter (A, B, C or D) of the correct answer in the brackets provided.
  • Section B: write your answers in the spaces provided.
  • Show all working. Marks may be awarded for correct working even if the final answer is wrong.
  • Give units with your answers where appropriate.
  • The number of marks is given in brackets [ ] at the end of each question or part question.

Original practice material written for the MOE Lower Secondary Mathematics syllabus. It is not an official MOE or school examination paper. Chapter 6.

For Examiner’s Use
Section A/ 10
Section B/ 20
Total/ 30

Section A: Multiple-choice questions[10 marks]

Answer all questions. For each question, write the letter (A, B, C or D) of the correct answer in the brackets provided.

  1. 1

    30% of 90 is

    1. A3
    2. B21
    3. C27
    4. D63
    ( )
  2. 2

    Written as a percentage, 7/20 is

    1. A7%
    2. B35%
    3. C20%
    4. D70%
    ( )
  3. 3

    18 is 45% of which number?

    1. A40
    2. B8.1
    3. C45
    4. D400
    ( )
  4. 4

    $65 increased by 8% becomes

    1. A$73
    2. B$52
    3. C$69.80
    4. D$70.20
    ( )
  5. 5

    A $95 shirt is sold at a 20% discount. The sale price is

    1. A$19
    2. B$76
    3. C$75
    4. D$114
    ( )
  6. 6

    A bill that includes 9% GST comes to $109. The amount before GST was

    1. A$99.19
    2. B$9.81
    3. C$100
    4. D$118.81
    ( )
  7. 7

    A value changes from 50 to 62. The percentage change is

    1. Aan increase of 24%
    2. Ban increase of 12%
    3. Ca decrease of 24%
    4. Dan increase of 19.4%
    ( )
  8. 8

    Simple interest on $800 at 3% per year for 2 years is

    1. A$24
    2. B$72
    3. C$848
    4. D$48
    ( )
  9. 9

    Which of these numbers is the smallest?

    1. A0.45
    2. B4/9
    3. C0.444
    4. D47%
    ( )
  10. 10

    After a 25% increase, a salary is $2 400. The original salary was

    1. A$1 800
    2. B$1 920
    3. C$2 000
    4. D$2 150
    ( )

Section B: Structured questions[20 marks]

Answer all questions in the spaces provided. Show your working clearly.

  1. 1

    This question is about converting and finding percentages.

    1. (a)

      Express 3/5 as a percentage.

      answer =[1]
    2. (b)

      Find 24% of 75.

      [2]
    3. (c)

      Express $4.50 as a percentage of $18.

      [2]
  2. 2

    This question is about percentage increase and decrease.

    1. (a)

      Increase 240 by 15%.

      [2]
    2. (b)

      Decrease 90 by 30%.

      [2]
    3. (c)

      A value changes from 85 to 102. Express the change as a percentage of the original value.

      answer =[1]
  3. 3

    This question is about finding original amounts.

    1. (a)

      After a 20% discount, a bag costs $96. Find its original price.

      [3]
    2. (b)

      A number is increased by 25% and becomes 75. Find the number.

      [2]
  4. 4

    This question is about GST and simple interest.

    1. (a)

      A restaurant bill is $80 before GST. GST is charged at 9%. Find the total bill including GST.

      [2]
    2. (b)

      Find the simple interest on $1 200 invested at 2.5% per year for 3 years.

      [2]
    3. (c)

      State the total amount in the account at the end of the 3 years.

      amount =[1]

— End of paper —