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Lintel Jun 9 - 15 25 questions
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Monday 9 June 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    36000

    Answer: 3.6 × 104
  2. 2. Algebra

    Factorise: x² + 4x - 21

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

    Hypotenuse = 22cm, angle = 60°. Find adjacent side

    Answer: 11cm
  4. 4. Ratio

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

    Answer: 410
  5. 5. Statistics

    The mean of 6 numbers is 28. If 5 of them are 17, 41, 36, 44, 37, what is the missing number?

    Answer: -7

Tuesday 10 June 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    22000

    Answer: 2.2 × 104
  2. 2. Algebra

    Factorise: x² + 2x - 15

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

    Adjacent = 17cm, angle = 55°. Find opposite

    Answer: 24.3cm
  4. 4. Ratio

    In ratio 1:3:1, what fraction is the second part?

    Answer: 35
  5. 5. Statistics

    The mean of 6 numbers is 22. If 5 of them are 26, 29, 44, 27, 22, what is the missing number?

    Answer: -16

Wednesday 11 June 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.091

    Answer: 9.1 × 10-2
  2. 2. Algebra

    Factorise: x² - 9x + 18

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

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

    Answer: 11.8cm
  4. 4. Ratio

    £287.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £164.00
  5. 5. Statistics

    Calculate the mean of: 40, 50, 20, 30, 5, 48

    Answer: 32.2

Thursday 12 June 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    95000000

    Answer: 9.5 × 107
  2. 2. Algebra

    Factorise: x² - 10x + 21

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

    Adjacent = 17cm, angle = 40°. Find opposite

    Answer: 14.3cm
  4. 4. Ratio

    In ratio 1:1:3, what fraction is the second part?

    Answer: 15
  5. 5. Statistics

    Calculate the mean of: 5, 18, 47, 50, 41, 34

    Answer: 32.5

Friday 13 June 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00068

    Answer: 6.8 × 10-4
  2. 2. Algebra

    Factorise: x² + 4x - 5

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

    Hypotenuse = 21cm, angle = 30°. Find adjacent side

    Answer: 18.2cm
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 38. If 4 of them are 28, 45, 47, 40, what is the missing number?

    Answer: 30