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Lintel Sep 4 - 10 25 questions
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Monday 4 September 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00016 in standard form

    Answer: 1.6 × 10-4
  2. 2. Algebra

    Factorise: x² - 3x - 28

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

    Adjacent = 10cm, angle = 60°. Find opposite. Give your answer to 2 decimal places

    Answer: 17.32cm
  4. 4. Ratio

    £189.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £108.00
  5. 5. Statistics

    The mean of 4 numbers is 37. If 3 of them are 49, 21, 36, what is the missing number?

    Answer: 42

Tuesday 5 September 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 440,000,000 in standard form

    Answer: 4.4 × 108
  2. 2. Algebra

    Factorise: x² + 4x - 32

    Answer: (x + 8)(x - 4)
  3. 3. Geometry

    Hypotenuse = 26cm, angle = 50°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 16.71cm
  4. 4. Ratio

    Simplify the ratio 2kg : 300g

    Answer: 20:3
  5. 5. Statistics

    Calculate the mean of: 47, 33, 12, 9, 11, 46, 31

    Answer: 27

Wednesday 6 September 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00048 in standard form

    Answer: 4.8 × 10-4
  2. 2. Algebra

    Factorise: x² - 2x - 8

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

    Adjacent = 26cm, angle = 32°. Find opposite. Give your answer to 2 decimal places

    Answer: 16.25cm
  4. 4. Ratio

    £175.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £125.00
  5. 5. Statistics

    Calculate the mean of: 19, 16, 6, 11, 45, 14, 44, 19

    Answer: 21.75

Thursday 7 September 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 420,000,000 in standard form

    Answer: 4.2 × 108
  2. 2. Algebra

    Factorise: x² - x - 90

    Answer: (x + 9)(x - 10)
  3. 3. Geometry

    Hypotenuse = 15cm, angle = 60°. Find adjacent side

    Answer: 7.5cm
  4. 4. Ratio

    Simplify the ratio 1 litre : 450 ml

    Answer: 20:9
  5. 5. Statistics

    The mean of 4 numbers is 31. If 3 of them are 20, 18, 19, what is the missing number?

    Answer: 67

Friday 8 September 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 120,000,000 in standard form

    Answer: 1.2 × 108
  2. 2. Algebra

    Factorise: x² - x - 20

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

    Hypotenuse = 38cm, angle = 43°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 27.79cm
  4. 4. Ratio

    £224.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £160.00
  5. 5. Statistics

    The mean of 4 numbers is 30. If 3 of them are 50, 22, 24, what is the missing number?

    Answer: 24