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Lintel May 19 - 25 25 questions
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Monday 19 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00031

    Answer: 3.1 × 10-4
  2. 2. Algebra

    Factorise: x² - 6x + 8

    Answer: (x - 4)(x - 2)
  3. 3. Geometry

    Adjacent = 14cm, angle = 58°. Find opposite

    Answer: 22.4cm
  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 41, 20, 33, 39, what is the missing number?

    Answer: 57

Tuesday 20 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    770000

    Answer: 7.7 × 105
  2. 2. Algebra

    Factorise: x² - 7x + 10

    Answer: (x - 2)(x - 5)
  3. 3. Geometry

    Hypotenuse = 38cm, angle = 52°. Find adjacent side

    Answer: 23.4cm
  4. 4. Ratio

    £336.00 is shared between A and B in the ratio 3:5. How much does A receive?

    Answer: £126.00
  5. 5. Statistics

    Calculate the mean of: 25, 35, 28, 42, 38, 41, 38, 17

    Answer: 33

Wednesday 21 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00087

    Answer: 8.7 × 10-4
  2. 2. Algebra

    Factorise: x² + 2x - 15

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

    Adjacent = 24cm, angle = 36°. Find opposite

    Answer: 17.4cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 39. If 4 of them are 43, 46, 16, 24, what is the missing number?

    Answer: 66

Thursday 22 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    6900000

    Answer: 6.9 × 106
  2. 2. Algebra

    Factorise: x² + 2x - 24

    Answer: (x + 6)(x - 4)
  3. 3. Geometry

    Hypotenuse = 39cm, angle = 48°. Find adjacent side

    Answer: 26.cm
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 6 numbers is 29. If 5 of them are 35, 26, 19, 15, 29, what is the missing number?

    Answer: 50

Friday 23 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00041

    Answer: 4.1 × 10-4
  2. 2. Algebra

    Factorise: x² - 11x + 30

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

    Adjacent = 26cm, angle = 37°. Find opposite

    Answer: 19.6cm
  4. 4. Ratio

    In ratio 3:3:2, what fraction is the second part?

    Answer: 38
  5. 5. Statistics

    Calculate the mean of: 23, 45, 24, 29, 5, 36

    Answer: 27