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Lintel Aug 11 - 17 25 questions
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Monday 11 August 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    8600000

    Answer: 8.6 × 106
  2. 2. Algebra

    Factorise: x² + 2x - 3

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

    Hypotenuse = 39cm, angle = 31°. Find adjacent side

    Answer: 33.4cm
  4. 4. Ratio

    Express the first part of 3:2 as a fraction in simplest form

    Answer: 35
  5. 5. Statistics

    Calculate the mean of: 43, 42, 28, 13, 21, 30, 37

    Answer: 30.6

Tuesday 12 August 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0023

    Answer: 2.3 × 10-3
  2. 2. Algebra

    Factorise: x² + x - 2

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

    Adjacent = 30cm, angle = 30°. Find opposite

    Answer: 17.3cm
  4. 4. Ratio

    Divide 161 in the ratio 3:3:1

    Answer: 69, 69 and 23
  5. 5. Statistics

    Calculate the mean of: 26, 25, 7, 31, 48, 8, 12, 5

    Answer: 20.3

Wednesday 13 August 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    300000

    Answer: 3 × 105
  2. 2. Algebra

    Factorise: x² - 10x + 21

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

    Hypotenuse = 21cm, angle = 45°. Find adjacent side

    Answer: 14.8cm
  4. 4. Ratio

    Simplify: 15:12:15

    Answer: 5:4:5
  5. 5. Statistics

    The mean of 6 numbers is 36. If 5 of them are 44, 35, 42, 26, 29, what is the missing number?

    Answer: 40

Thursday 14 August 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    960000

    Answer: 9.6 × 105
  2. 2. Algebra

    Factorise: x² - 12x + 35

    Answer: (x - 7)(x - 5)
  3. 3. Geometry

    Hypotenuse = 30cm, angle = 51°. Find adjacent side

    Answer: 18.9cm
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 28, 38, 5, 49, 6, 45, 24

    Answer: 27.9

Friday 15 August 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0017

    Answer: 1.7 × 10-3
  2. 2. Algebra

    Factorise: x² + x - 12

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

    Adjacent = 22cm, angle = 44°. Find opposite

    Answer: 21.2cm
  4. 4. Ratio

    £189.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £108.00
  5. 5. Statistics

    The mean of 6 numbers is 36. If 5 of them are 43, 25, 47, 50, 31, what is the missing number?

    Answer: 20