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Lintel May 28 - Jun 3 25 questions
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Monday 28 May 2012

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 - 20x + 96

    Answer: (x - 8)(x - 12)
  3. 3. Geometry

    Hypotenuse = 32cm, angle = 38°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 25.22cm
  4. 4. Ratio

    In ratio 1:2:5, what fraction is the first part?

    Answer: 1⁄8
  5. 5. Statistics

    The mean of 5 numbers is 30. If 4 of them are 16, 23, 41, 15, what is the missing number?

    Answer: 55

Tuesday 29 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0045 in standard form

    Answer: 4.5 × 10-3
  2. 2. Algebra

    Factorise: x² - 7x - 8

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

    Adjacent = 21cm, angle = 35°. Find opposite. Give your answer to 2 decimal places

    Answer: 14.7cm
  4. 4. Ratio

    £110.00 is shared between A and B in the ratio 3:2. How much does A receive?

    Answer: £66.00
  5. 5. Statistics

    Calculate the mean of: 16, 34, 22, 43, 16, 13, 27, 39

    Answer: 26.25

Wednesday 30 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.025 in standard form

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

    Factorise: x² + x - 30

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

    Hypotenuse = 40cm, angle = 32°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 33.92cm
  4. 4. Ratio

    £231.00 is shared between A and B in the ratio 3:4. How much does A receive?

    Answer: £99.00
  5. 5. Statistics

    Calculate the mean of: 13, 48, 46, 37, 47, 24, 26, 38. Give your answer to 2 decimal places

    Answer: 34.88

Thursday 31 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 91,000,000 in standard form

    Answer: 9.1 × 107
  2. 2. Algebra

    Factorise: x² - 6x - 7

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

    Adjacent = 24cm, angle = 32°. Find opposite. Give your answer to 2 decimal places

    Answer: 15cm
  4. 4. Ratio

    £168.00 is shared between A and B in the ratio 5:3. How much does A receive?

    Answer: £105.00
  5. 5. Statistics

    The mean of 4 numbers is 22. If 3 of them are 37, 15, 17, what is the missing number?

    Answer: 19

Friday 1 June 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 6,200,000 in standard form

    Answer: 6.2 × 106
  2. 2. Algebra

    Factorise: x² - 5x - 50

    Answer: (x + 5)(x - 10)
  3. 3. Geometry

    Hypotenuse = 28cm, angle = 44°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 20.14cm
  4. 4. Ratio

    In ratio 8:1:12, what fraction is the third part?

    Answer: 4⁄7
  5. 5. Statistics

    Calculate the mean of: 19, 28, 45, 6, 50, 41, 7

    Answer: 28