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Lintel Sep 21 - 27 25 questions
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Monday 21 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    99000000

    Answer: 9.9 × 107
  2. 2. Algebra

    Factorise: x² - 9x + 18

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

    Adjacent = 27cm, angle = 44°. Find opposite

    Answer: 26.cm
  4. 4. Ratio

    In ratio 2:4:2, what fraction is the second part?

    Answer: 48
  5. 5. Statistics

    Calculate the mean of: 10, 30, 9, 48, 13, 29

    Answer: 23.2

Tuesday 22 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.085

    Answer: 8.5 × 10-2
  2. 2. Algebra

    Factorise: x² - 6x + 9

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

    Hypotenuse = 37cm, angle = 42°. Find adjacent side

    Answer: 27.5cm
  4. 4. Ratio

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

    Answer: 15
  5. 5. Statistics

    Calculate the mean of: 47, 45, 7, 14, 17, 37, 26

    Answer: 27.6

Wednesday 23 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    3700000

    Answer: 3.7 × 106
  2. 2. Algebra

    Factorise: x² + x - 2

    Answer: (x + 2)(x - 1)
  3. 3. Geometry

    Adjacent = 15cm, angle = 52°. Find opposite

    Answer: 19.2cm
  4. 4. Ratio

    In ratio 1:4:2, what fraction is the second part?

    Answer: 47
  5. 5. Statistics

    The mean of 4 numbers is 40. If 3 of them are 26, 24, 45, what is the missing number?

    Answer: 65

Thursday 24 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    45000000

    Answer: 4.5 × 107
  2. 2. Algebra

    Factorise: x² + 2x - 8

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

    Adjacent = 26cm, angle = 30°. Find opposite

    Answer: 15cm
  4. 4. Ratio

    Express the first part of 6:5 as a fraction in simplest form

    Answer: 611
  5. 5. Statistics

    Calculate the mean of: 45, 32, 20, 48, 10, 17, 21, 36

    Answer: 28.6

Friday 25 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.056

    Answer: 5.6 × 10-2
  2. 2. Algebra

    Factorise: x² - 12x + 35

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

    Hypotenuse = 16cm, angle = 58°. Find adjacent side

    Answer: 8.5cm
  4. 4. Ratio

    Divide 160 in the ratio 2:1:2

    Answer: 64, 32 and 64
  5. 5. Statistics

    The mean of 5 numbers is 37. If 4 of them are 29, 30, 46, 28, what is the missing number?

    Answer: 52