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Lintel Aug 29 - Sep 4 25 questions
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Monday 29 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    2600000

    Answer: 2.6 × 106
  2. 2. Algebra

    Factorise: x² - 8x + 15

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

    Hypotenuse = 18cm, angle = 25°. Find adjacent side

    Answer: 16.3cm
  4. 4. Ratio

    Divide 270 in the ratio 2:4:3

    Answer: 60, 120 and 90
  5. 5. Statistics

    Calculate the mean of: 50, 50, 8, 16, 28, 28

    Answer: 30

Tuesday 30 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    8800000

    Answer: 8.8 × 106
  2. 2. Algebra

    Factorise: x² + 4x - 5

    Answer: (x + 5)(x - 1)
  3. 3. Geometry

    Adjacent = 24cm, angle = 51°. Find opposite

    Answer: 29.6cm
  4. 4. Ratio

    Divide 260 in the ratio 3:4:3

    Answer: 78, 104 and 78
  5. 5. Statistics

    Calculate the mean of: 11, 28, 15, 8, 18, 41, 15

    Answer: 19.4

Wednesday 31 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.025

    Answer: 2.5 × 10-2
  2. 2. Algebra

    Factorise: x² - 8x + 12

    Answer: (x - 6)(x - 2)
  3. 3. Geometry

    Hypotenuse = 17cm, angle = 46°. Find adjacent side

    Answer: 11.8cm
  4. 4. Ratio

    Express the first part of 3:5 as a fraction in simplest form

    Answer: 38
  5. 5. Statistics

    The mean of 5 numbers is 39. If 4 of them are 25, 40, 33, 15, what is the missing number?

    Answer: 82

Thursday 1 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.079

    Answer: 7.9 × 10-2
  2. 2. Algebra

    Factorise: x² - 5x + 6

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

    Hypotenuse = 19cm, angle = 59°. Find adjacent side

    Answer: 9.8cm
  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: 45, 18, 45, 45, 28, 38, 18

    Answer: 33.9

Friday 2 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    800000

    Answer: 8 × 105
  2. 2. Algebra

    Factorise: x² - 4x + 4

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

    Adjacent = 16cm, angle = 56°. Find opposite

    Answer: 23.7cm
  4. 4. Ratio

    Simplify: 10:10:6

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

    Calculate the mean of: 11, 7, 10, 40, 20, 31

    Answer: 19.8