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Lintel Oct 6 - 12 25 questions
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Monday 6 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.085 in standard form

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

    Factorise: x² - 20x + 99

    Answer: (x - 9)(x - 11)
  3. 3. Geometry

    Adjacent = 13cm, angle = 50°. Find opposite. Give your answer to 2 decimal places

    Answer: 15.49cm
  4. 4. Ratio

    £243.00 is shared between A and B in the ratio 5:4. How much does A receive?

    Answer: £135.00
  5. 5. Statistics

    Calculate the mean of: 20, 8, 5, 39, 50, 7, 24, 36. Give your answer to 2 decimal places

    Answer: 23.63

Tuesday 7 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 940,000 in standard form

    Answer: 9.4 × 105
  2. 2. Algebra

    Factorise: x² + x - 30

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

    Hypotenuse = 33cm, angle = 45°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 23.33cm
  4. 4. Ratio

    £252.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £144.00
  5. 5. Statistics

    The mean of 4 numbers is 31. If 3 of them are 18, 37, 49, what is the missing number?

    Answer: 20

Wednesday 8 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 730,000,000 in standard form

    Answer: 7.3 × 108
  2. 2. Algebra

    Factorise: x² - 7x - 8

    Answer: (x + 1)(x - 8)
  3. 3. Geometry

    Hypotenuse = 23cm, angle = 59°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 11.85cm
  4. 4. Ratio

    £216.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £72.00
  5. 5. Statistics

    The mean of 5 numbers is 33. If 4 of them are 29, 47, 20, 16, what is the missing number?

    Answer: 53

Thursday 9 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00094 in standard form

    Answer: 9.4 × 10-4
  2. 2. Algebra

    Factorise: x² + 12x + 36

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

    Adjacent = 19cm, angle = 39°. Find opposite. Give your answer to 2 decimal places

    Answer: 15.39cm
  4. 4. Ratio

    In ratio 3:8:4, what fraction is the second part?

    Answer: 8⁄15
  5. 5. Statistics

    Calculate the mean of: 5, 20, 36, 49, 23, 29

    Answer: 27

Friday 10 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.033 in standard form

    Answer: 3.3 × 10-2
  2. 2. Algebra

    Factorise: x² + 8x - 48

    Answer: (x + 12)(x - 4)
  3. 3. Geometry

    Hypotenuse = 28cm, angle = 30°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 24.25cm
  4. 4. Ratio

    £230.00 is shared between A and B in the ratio 3:2. How much does A receive?

    Answer: £138.00
  5. 5. Statistics

    Calculate the mean of: 36, 49, 5, 29, 11, 10, 38. Give your answer to 2 decimal places

    Answer: 25.43