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Lintel Aug 23 - 29 25 questions
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Monday 23 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0008

    Answer: 8 × 10-4
  2. 2. Algebra

    Factorise: x² - 9x + 18

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

    Adjacent = 21cm, angle = 35°. Find opposite

    Answer: 14.7cm
  4. 4. Ratio

    Simplify: 10:12:8

    Answer: 5:6:4
  5. 5. Statistics

    The mean of 4 numbers is 23. If 3 of them are 19, 50, 50, what is the missing number?

    Answer: -27

Tuesday 24 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00061

    Answer: 6.1 × 10-4
  2. 2. Algebra

    Factorise: x² - 7x + 10

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

    Adjacent = 29cm, angle = 51°. Find opposite

    Answer: 35.8cm
  4. 4. Ratio

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

    Answer: 17
  5. 5. Statistics

    Calculate the mean of: 46, 42, 31, 49, 24, 48, 46, 50

    Answer: 42

Wednesday 25 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    7400000

    Answer: 7.4 × 106
  2. 2. Algebra

    Factorise: x² + 7x - 8

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

    Hypotenuse = 24cm, angle = 29°. Find adjacent side

    Answer: 21cm
  4. 4. Ratio

    £259.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £185.00
  5. 5. Statistics

    The mean of 4 numbers is 20. If 3 of them are 32, 21, 39, what is the missing number?

    Answer: -12

Thursday 26 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0077

    Answer: 7.7 × 10-3
  2. 2. Algebra

    Factorise: x² + x - 30

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

    Adjacent = 11cm, angle = 34°. Find opposite

    Answer: 7.4cm
  4. 4. Ratio

    Simplify the ratio 2m:200cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 6 numbers is 38. If 5 of them are 24, 31, 31, 27, 18, what is the missing number?

    Answer: 97

Friday 27 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    45000000

    Answer: 4.5 × 107
  2. 2. Algebra

    Factorise: x² - 6x + 9

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

    Hypotenuse = 20cm, angle = 61°. Find adjacent side

    Answer: 9.7cm
  4. 4. Ratio

    £322.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £184.00
  5. 5. Statistics

    Calculate the mean of: 50, 32, 45, 46, 35, 24, 27

    Answer: 37