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Lintel May 5 - 11 25 questions
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Monday 5 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0034

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

    Factorise: x² + 3x - 18

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

    Hypotenuse = 32cm, angle = 50°. Find adjacent side

    Answer: 20.6cm
  4. 4. Ratio

    Divide 300 in the ratio 2:2:1

    Answer: 120, 120 and 60
  5. 5. Statistics

    The mean of 4 numbers is 24. If 3 of them are 26, 28, 16, what is the missing number?

    Answer: 26

Tuesday 6 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    6000000

    Answer: 6 × 106
  2. 2. Algebra

    Factorise: x² + 5x - 14

    Answer: (x + 7)(x - 2)
  3. 3. Geometry

    Adjacent = 26cm, angle = 58°. Find opposite

    Answer: 41.6cm
  4. 4. Ratio

    Divide 154 in the ratio 1:2:4

    Answer: 22, 44 and 88
  5. 5. Statistics

    The mean of 4 numbers is 27. If 3 of them are 23, 26, 34, what is the missing number?

    Answer: 25

Wednesday 7 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.089

    Answer: 8.9 × 10-2
  2. 2. Algebra

    Factorise: x² - 8x + 12

    Answer: (x - 6)(x - 2)
  3. 3. Geometry

    Hypotenuse = 34cm, angle = 53°. Find adjacent side

    Answer: 20.5cm
  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: 33, 39, 19, 42, 46, 46, 40, 22

    Answer: 35.9

Thursday 8 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.049

    Answer: 4.9 × 10-2
  2. 2. Algebra

    Factorise: x² - 12x + 35

    Answer: (x - 7)(x - 5)
  3. 3. Geometry

    Hypotenuse = 23cm, angle = 58°. Find adjacent side

    Answer: 12.2cm
  4. 4. Ratio

    Simplify: 12:8:8

    Answer: 3:2:2
  5. 5. Statistics

    Calculate the mean of: 29, 22, 23, 33, 20, 26, 21, 7

    Answer: 22.6

Friday 9 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    1000000

    Answer: 1 × 106
  2. 2. Algebra

    Factorise: x² + 7x - 8

    Answer: (x + 8)(x - 1)
  3. 3. Geometry

    Adjacent = 20cm, angle = 59°. Find opposite

    Answer: 33.3cm
  4. 4. Ratio

    Simplify: 8:10:4

    Answer: 4:5:2
  5. 5. Statistics

    The mean of 4 numbers is 37. If 3 of them are 44, 46, 19, what is the missing number?

    Answer: 39