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Lintel Feb 24 - Mar 1 25 questions
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Monday 24 February 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    7700000

    Answer: 7.7 × 106
  2. 2. Algebra

    Factorise: x² - 11x + 28

    Answer: (x - 7)(x - 4)
  3. 3. Geometry

    Hypotenuse = 35cm, angle = 62°. Find adjacent side

    Answer: 16.4cm
  4. 4. Ratio

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

    Answer: 15
  5. 5. Statistics

    The mean of 6 numbers is 24. If 5 of them are 39, 46, 25, 32, 31, what is the missing number?

    Answer: -29

Tuesday 25 February 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0069

    Answer: 6.9 × 10-3
  2. 2. Algebra

    Factorise: x² + 3x - 4

    Answer: (x + 4)(x - 1)
  3. 3. Geometry

    Adjacent = 12cm, angle = 36°. Find opposite

    Answer: 8.7cm
  4. 4. Ratio

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

    Answer: 17
  5. 5. Statistics

    Calculate the mean of: 7, 26, 42, 9, 41, 50

    Answer: 29.2

Wednesday 26 February 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    50000

    Answer: 5 × 104
  2. 2. Algebra

    Factorise: x² + x - 2

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

    Hypotenuse = 21cm, angle = 41°. Find adjacent side

    Answer: 15.8cm
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 21, 42, 26, 14, 42, 39, 12

    Answer: 28

Thursday 27 February 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00015

    Answer: 1.5 × 10-4
  2. 2. Algebra

    Factorise: x² - 8x + 12

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

    Adjacent = 20cm, angle = 38°. Find opposite

    Answer: 15.6cm
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 25. If 4 of them are 30, 45, 31, 25, what is the missing number?

    Answer: -6

Friday 28 February 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.073

    Answer: 7.3 × 10-2
  2. 2. Algebra

    Factorise: x² - 4x + 4

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

    Adjacent = 25cm, angle = 44°. Find opposite

    Answer: 24.cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 6 numbers is 34. If 5 of them are 39, 36, 22, 43, 33, what is the missing number?

    Answer: 31