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Lintel Feb 21 - 27 25 questions
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Monday 21 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    8000000

    Answer: 8 × 106
  2. 2. Algebra

    Factorise: x² + x - 30

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

    Adjacent = 12cm, angle = 45°. Find opposite

    Answer: 12cm
  4. 4. Ratio

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

    Answer: 47
  5. 5. Statistics

    Calculate the mean of: 29, 48, 29, 30, 6, 19, 30

    Answer: 27.3

Tuesday 22 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.079

    Answer: 7.9 × 10-2
  2. 2. Algebra

    Factorise: x² + x - 2

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

    Hypotenuse = 26cm, angle = 26°. Find adjacent side

    Answer: 23.4cm
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 19, 40, 44, 43, 29, 27, 46

    Answer: 35.4

Wednesday 23 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    6400000

    Answer: 6.4 × 106
  2. 2. Algebra

    Factorise: x² - 12x + 35

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

    Adjacent = 19cm, angle = 47°. Find opposite

    Answer: 20.4cm
  4. 4. Ratio

    In ratio 3:4:2, what fraction is the second part?

    Answer: 49
  5. 5. Statistics

    The mean of 5 numbers is 26. If 4 of them are 31, 34, 19, 28, what is the missing number?

    Answer: 18

Thursday 24 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    73000000

    Answer: 7.3 × 107
  2. 2. Algebra

    Factorise: x² - 9x + 20

    Answer: (x - 4)(x - 5)
  3. 3. Geometry

    Adjacent = 20cm, angle = 47°. Find opposite

    Answer: 21.4cm
  4. 4. Ratio

    Divide 88 in the ratio 1:4:3

    Answer: 11, 44 and 33
  5. 5. Statistics

    Calculate the mean of: 36, 39, 46, 43, 27, 16

    Answer: 34.5

Friday 25 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.045

    Answer: 4.5 × 10-2
  2. 2. Algebra

    Factorise: x² + 3x - 18

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

    Hypotenuse = 18cm, angle = 42°. Find adjacent side

    Answer: 13.4cm
  4. 4. Ratio

    Simplify: 12:4:12

    Answer: 3:1:3
  5. 5. Statistics

    The mean of 5 numbers is 28. If 4 of them are 25, 25, 44, 17, what is the missing number?

    Answer: 29