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Lintel Apr 13 - 19 25 questions
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Monday 13 April 2026

Keystones #103 · Five questions · Open this day only

  1. 1. Number

    Simplify: (a4)4 × a2

    Answer: a18
  2. 2. Algebra

    Solve: 10x - 12 = 6x + 28

    Answer: x = 10
  3. 3. Geometry

    Find the distance between (-3, -4) and (11, 4)

    Answer: 16.12
  4. 4. Ratio

    A value of 244 increases by 8% each year for 3 years. Final value?

    Answer: 307.37
  5. 5. Statistics

    Calculate the median of: 10, 22, 25, 37, 30, 20

    Answer: 23.5

Tuesday 14 April 2026

Keystones #104 · Five questions · Open this day only

  1. 1. Number

    Simplify: (a3)4 × a3

    Answer: a15
  2. 2. Algebra

    Solve: 5x - 12 = 2x + 3

    Answer: x = 5
  3. 3. Geometry

    Find the distance between (-6, -8) and (8, 5)

    Answer: 19.1
  4. 4. Ratio

    A car worth £8,959.00 depreciates by 23% each year for 5 years. What is it worth after 5 years?

    Answer: £2,425.01
  5. 5. Statistics

    Find the median of: 48, 36, 41, 62, 71, 73, 61, 75, 49

    Answer: 61

Wednesday 15 April 2026

Keystones #105 · Five questions · Open this day only

  1. 1. Number

    Simplify: y2 × (y2)2 ÷ y2

    Answer: y4
  2. 2. Algebra

    Solve: 6x + 12 = x - 10

    Answer: x = 4.4
  3. 3. Geometry

    Calculate the distance between (9, 9) and (12, 13)

    Answer: 5
  4. 4. Ratio

    A car worth £7,310.00 depreciates by 22% each year for 4 years. What is it worth after 4 years?

    Answer: £2,705.80
  5. 5. Statistics

    Calculate the median of: 30, 36, 37, 17, 12, 25

    Answer: 27.5

Thursday 16 April 2026

Keystones #106 · Five questions · Open this day only

  1. 1. Number

    Simplify: (a4)2 × a3

    Answer: a11
  2. 2. Algebra

    Solve: 6x + 4 = 4x - 5

    Answer: x = 4.5
  3. 3. Geometry

    Find the distance between (-6, -6) and (8, 11)

    Answer: 22.02
  4. 4. Ratio

    A car worth £18,417.00 depreciates by 17% each year for 3 years. What is it worth after 3 years?

    Answer: £10,530.60
  5. 5. Statistics

    Calculate the median of: 27, 31, 37, 30, 12, 16

    Answer: 28.5

Friday 17 April 2026

Keystones #107 · Five questions · Open this day only

  1. 1. Number

    Simplify: y4 × (y2)3 ÷ y1

    Answer: y9
  2. 2. Algebra

    Solve: 10x - 7 = 2x + 17

    Answer: x = 3
  3. 3. Geometry

    Calculate the distance between (10, 10) and (13, 14)

    Answer: 5
  4. 4. Ratio

    A car worth £10,626.00 depreciates by 24% each year for 3 years. What is it worth after 3 years?

    Answer: £4,664.56
  5. 5. Statistics

    Find the median of: 23, 75, 29, 74, 59, 30, 37, 35, 49

    Answer: 37