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Lintel Mar 3 - 9 25 questions
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Monday 3 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00074

    Answer: 7.4 × 10-4
  2. 2. Algebra

    Factorise: x² - 7x + 12

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

    Adjacent = 21cm, angle = 38°. Find opposite

    Answer: 16.4cm
  4. 4. Ratio

    Divide 156 in the ratio 3:2:1

    Answer: 78, 52 and 26
  5. 5. Statistics

    Calculate the mean of: 13, 30, 43, 10, 20, 23

    Answer: 23.2

Tuesday 4 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0034

    Answer: 3.4 × 10-3
  2. 2. Algebra

    Factorise: x² - 4x + 4

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

    Adjacent = 30cm, angle = 32°. Find opposite

    Answer: 18.7cm
  4. 4. Ratio

    £190.00 is shared between A and B in the ratio 3:2. How much does A receive?

    Answer: £114.00
  5. 5. Statistics

    The mean of 5 numbers is 20. If 4 of them are 15, 28, 20, 47, what is the missing number?

    Answer: -10

Wednesday 5 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    98000000

    Answer: 9.8 × 107
  2. 2. Algebra

    Factorise: x² + x - 30

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

    Hypotenuse = 22cm, angle = 32°. Find adjacent side

    Answer: 18.7cm
  4. 4. Ratio

    £110.00 is shared between A and B in the ratio 2:3. How much does A receive?

    Answer: £44.00
  5. 5. Statistics

    Calculate the mean of: 22, 6, 8, 32, 49, 29, 25

    Answer: 24.4

Thursday 6 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.087

    Answer: 8.7 × 10-2
  2. 2. Algebra

    Factorise: x² + 2x - 48

    Answer: (x + 8)(x - 6)
  3. 3. Geometry

    Adjacent = 11cm, angle = 47°. Find opposite

    Answer: 11.8cm
  4. 4. Ratio

    £280.00 is shared between A and B in the ratio 3:5. How much does A receive?

    Answer: £105.00
  5. 5. Statistics

    Calculate the mean of: 27, 40, 12, 27, 42, 19, 24, 42

    Answer: 29.1

Friday 7 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    23000000

    Answer: 2.3 × 107
  2. 2. Algebra

    Factorise: x² - 11x + 28

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

    Hypotenuse = 30cm, angle = 36°. Find adjacent side

    Answer: 24.3cm
  4. 4. Ratio

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

    Answer: 1⁄5
  5. 5. Statistics

    The mean of 5 numbers is 28. If 4 of them are 19, 32, 39, 34, what is the missing number?

    Answer: 16