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Lintel Aug 26 - Sep 1 25 questions
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Monday 26 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    310000

    Answer: 3.1 × 105
  2. 2. Algebra

    Factorise: x² + x - 2

    Answer: (x + 2)(x - 1)
  3. 3. Geometry

    Hypotenuse = 34cm, angle = 38°. Find adjacent side

    Answer: 26.8cm
  4. 4. Ratio

    Divide 110 in the ratio 1:2:2

    Answer: 22, 44 and 44
  5. 5. Statistics

    The mean of 5 numbers is 22. If 4 of them are 21, 44, 20, 24, what is the missing number?

    Answer: 1

Tuesday 27 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0001

    Answer: 1 × 10-4
  2. 2. Algebra

    Factorise: x² - 9x + 14

    Answer: (x - 2)(x - 7)
  3. 3. Geometry

    Adjacent = 11cm, angle = 38°. Find opposite

    Answer: 8.6cm
  4. 4. Ratio

    Express the first part of 6:2 as a fraction in simplest form

    Answer: 34
  5. 5. Statistics

    Calculate the mean of: 28, 38, 7, 11, 47, 6, 37

    Answer: 24.9

Wednesday 28 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00092

    Answer: 9.2 × 10-4
  2. 2. Algebra

    Factorise: x² - 6x + 8

    Answer: (x - 4)(x - 2)
  3. 3. Geometry

    Adjacent = 25cm, angle = 31°. Find opposite

    Answer: 15cm
  4. 4. Ratio

    Simplify: 4:6:10

    Answer: 2:3:5
  5. 5. Statistics

    Calculate the mean of: 26, 27, 15, 44, 19, 26

    Answer: 26.2

Thursday 29 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    35000000

    Answer: 3.5 × 107
  2. 2. Algebra

    Factorise: x² + 3x - 10

    Answer: (x + 5)(x - 2)
  3. 3. Geometry

    Hypotenuse = 20cm, angle = 30°. Find adjacent side

    Answer: 17.3cm
  4. 4. Ratio

    Divide 120 in the ratio 4:1:3

    Answer: 60, 15 and 45
  5. 5. Statistics

    The mean of 6 numbers is 23. If 5 of them are 37, 50, 30, 42, 25, what is the missing number?

    Answer: -46

Friday 30 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    68000

    Answer: 6.8 × 104
  2. 2. Algebra

    Factorise: x² + 3x - 28

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

    Adjacent = 11cm, angle = 49°. Find opposite

    Answer: 12.7cm
  4. 4. Ratio

    Simplify: 20:8:8

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

    The mean of 4 numbers is 33. If 3 of them are 48, 24, 30, what is the missing number?

    Answer: 30