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Lintel Nov 3 - 9 25 questions
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Monday 3 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    160000

    Answer: 1.6 × 105
  2. 2. Algebra

    Factorise: x² + x - 12

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

    Adjacent = 15cm, angle = 35°. Find opposite

    Answer: 10.5cm
  4. 4. Ratio

    Simplify: 18:15:18

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

    Calculate the mean of: 45, 6, 41, 30, 17, 24

    Answer: 27.2

Tuesday 4 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    50000000

    Answer: 5 × 107
  2. 2. Algebra

    Factorise: x² + x - 30

    Answer: (x + 6)(x - 5)
  3. 3. Geometry

    Adjacent = 20cm, angle = 55°. Find opposite

    Answer: 28.6cm
  4. 4. Ratio

    In ratio 4:2:2, what fraction is the second part?

    Answer: 28
  5. 5. Statistics

    The mean of 6 numbers is 36. If 5 of them are 42, 23, 35, 28, 35, what is the missing number?

    Answer: 53

Wednesday 5 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00036

    Answer: 3.6 × 10-4
  2. 2. Algebra

    Factorise: x² - 8x + 16

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

    Hypotenuse = 31cm, angle = 37°. Find adjacent side

    Answer: 24.8cm
  4. 4. Ratio

    £400.00 is shared between A and B in the ratio 3:5. How much does A receive?

    Answer: £150.00
  5. 5. Statistics

    Calculate the mean of: 33, 35, 32, 41, 47, 47, 28

    Answer: 37.6

Thursday 6 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    8200000

    Answer: 8.2 × 106
  2. 2. Algebra

    Factorise: x² - 5x + 6

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

    Adjacent = 14cm, angle = 38°. Find opposite

    Answer: 10.9cm
  4. 4. Ratio

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

    Answer: 58
  5. 5. Statistics

    Calculate the mean of: 48, 29, 39, 31, 28, 49, 9

    Answer: 33.3

Friday 7 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00022

    Answer: 2.2 × 10-4
  2. 2. Algebra

    Factorise: x² + 3x - 28

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

    Hypotenuse = 21cm, angle = 25°. Find adjacent side

    Answer: 19cm
  4. 4. Ratio

    £182.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £104.00
  5. 5. Statistics

    The mean of 4 numbers is 38. If 3 of them are 23, 34, 29, what is the missing number?

    Answer: 66