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Lintel Oct 5 - 11 25 questions
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Monday 5 October 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0027

    Answer: 2.7 × 10-3
  2. 2. Algebra

    Factorise: x² - 4x + 4

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

    Adjacent = 22cm, angle = 42°. Find opposite

    Answer: 19.8cm
  4. 4. Ratio

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

    Answer: 27
  5. 5. Statistics

    The mean of 6 numbers is 36. If 5 of them are 26, 43, 27, 38, 26, what is the missing number?

    Answer: 56

Tuesday 6 October 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    98000000

    Answer: 9.8 × 107
  2. 2. Algebra

    Factorise: x² - 14x + 49

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

    Hypotenuse = 30cm, angle = 41°. Find adjacent side

    Answer: 22.6cm
  4. 4. Ratio

    £351.00 is shared between A and B in the ratio 4:5. How much does A receive?

    Answer: £156.00
  5. 5. Statistics

    The mean of 5 numbers is 36. If 4 of them are 45, 47, 48, 45, what is the missing number?

    Answer: -5

Wednesday 7 October 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00084

    Answer: 8.4 × 10-4
  2. 2. Algebra

    Factorise: x² + 6x - 7

    Answer: (x + 7)(x - 1)
  3. 3. Geometry

    Adjacent = 20cm, angle = 44°. Find opposite

    Answer: 19.3cm
  4. 4. Ratio

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

    Answer: 29
  5. 5. Statistics

    Calculate the mean of: 34, 42, 37, 37, 42, 5

    Answer: 32.8

Thursday 8 October 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0025

    Answer: 2.5 × 10-3
  2. 2. Algebra

    Factorise: x² + 3x - 10

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

    Adjacent = 15cm, angle = 46°. Find opposite

    Answer: 15.5cm
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 26, 43, 31, 30, 42, 14, 46, 47

    Answer: 34.9

Friday 9 October 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    210000

    Answer: 2.1 × 105
  2. 2. Algebra

    Factorise: x² - 9x + 20

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

    Hypotenuse = 21cm, angle = 36°. Find adjacent side

    Answer: 17cm
  4. 4. Ratio

    £423.00 is shared between A and B in the ratio 4:5. How much does A receive?

    Answer: £188.00
  5. 5. Statistics

    The mean of 5 numbers is 39. If 4 of them are 16, 27, 45, 38, what is the missing number?

    Answer: 69