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Lintel Nov 8 - 14 25 questions
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Monday 8 November 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    7100000

    Answer: 7.1 × 106
  2. 2. Algebra

    Factorise: x² - 7x + 12

    Answer: (x - 3)(x - 4)
  3. 3. Geometry

    Adjacent = 20cm, angle = 52°. Find opposite

    Answer: 25.6cm
  4. 4. Ratio

    Divide 60 in the ratio 2:1:2

    Answer: 24, 12 and 24
  5. 5. Statistics

    Calculate the mean of: 15, 20, 18, 43, 5, 14

    Answer: 19.2

Tuesday 9 November 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00076

    Answer: 7.6 × 10-4
  2. 2. Algebra

    Factorise: x² + x - 20

    Answer: (x + 5)(x - 4)
  3. 3. Geometry

    Hypotenuse = 39cm, angle = 44°. Find adjacent side

    Answer: 28.cm
  4. 4. Ratio

    Express the first part of 4:2 as a fraction in simplest form

    Answer: 23
  5. 5. Statistics

    The mean of 4 numbers is 20. If 3 of them are 41, 48, 40, what is the missing number?

    Answer: -49

Wednesday 10 November 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0042

    Answer: 4.2 × 10-3
  2. 2. Algebra

    Factorise: x² + 3x - 28

    Answer: (x + 7)(x - 4)
  3. 3. Geometry

    Adjacent = 19cm, angle = 40°. Find opposite

    Answer: 15.9cm
  4. 4. Ratio

    Divide 143 in the ratio 4:4:3

    Answer: 52, 52 and 39
  5. 5. Statistics

    The mean of 4 numbers is 39. If 3 of them are 46, 30, 15, what is the missing number?

    Answer: 65

Thursday 11 November 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    860000

    Answer: 8.6 × 105
  2. 2. Algebra

    Factorise: x² - 5x + 6

    Answer: (x - 3)(x - 2)
  3. 3. Geometry

    Hypotenuse = 26cm, angle = 43°. Find adjacent side

    Answer: 19cm
  4. 4. Ratio

    Simplify: 4:12:10

    Answer: 2:6:5
  5. 5. Statistics

    Calculate the mean of: 28, 39, 21, 8, 39, 21

    Answer: 26

Friday 12 November 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0004

    Answer: 4 × 10-4
  2. 2. Algebra

    Factorise: x² - 9x + 20

    Answer: (x - 4)(x - 5)
  3. 3. Geometry

    Adjacent = 26cm, angle = 44°. Find opposite

    Answer: 25.cm
  4. 4. Ratio

    Express the first part of 5:4 as a fraction in simplest form

    Answer: 59
  5. 5. Statistics

    Calculate the mean of: 42, 47, 45, 35, 26, 22

    Answer: 36.2