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Lintel Sep 6 - 12 25 questions
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Monday 6 September 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.048 in standard form

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

    Factorise: x² + 4x - 5

    Answer: (x + 5)(x - 1)
  3. 3. Geometry

    Adjacent = 26cm, angle = 55°. Find opposite. Give your answer to 2 decimal places

    Answer: 37.13cm
  4. 4. Ratio

    Orange, purple and pink marbles are in the ratio 10:9:9. What fraction of the marbles are purple?

    Answer: 9⁄28
  5. 5. Statistics

    Calculate the mean of: 50, 6, 14, 40, 34, 38. Give your answer to 2 decimal places

    Answer: 30.33

Tuesday 7 September 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 9,200,000 in standard form

    Answer: 9.2 × 106
  2. 2. Algebra

    Factorise: x² + 5x - 66

    Answer: (x + 11)(x - 6)
  3. 3. Geometry

    Hypotenuse = 23cm, angle = 32°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 19.51cm
  4. 4. Ratio

    Simplify the ratio £2 : 70p

    Answer: 20:7
  5. 5. Statistics

    The mean of 5 numbers is 40. If 4 of them are 39, 40, 25, 37, what is the missing number?

    Answer: 59

Wednesday 8 September 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 41,000 in standard form

    Answer: 4.1 × 104
  2. 2. Algebra

    Factorise: x² - 4x - 12

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

    Hypotenuse = 24cm, angle = 50°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 15.43cm
  4. 4. Ratio

    In ratio 5:11:12, what fraction is the second part?

    Answer: 11⁄28
  5. 5. Statistics

    The mean of 6 numbers is 30. If 5 of them are 19, 36, 42, 23, 40, what is the missing number?

    Answer: 20

Thursday 9 September 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0063 in standard form

    Answer: 6.3 × 10-3
  2. 2. Algebra

    Factorise: x² - 3x - 54

    Answer: (x + 6)(x - 9)
  3. 3. Geometry

    Adjacent = 17cm, angle = 42°. Find opposite. Give your answer to 2 decimal places

    Answer: 15.31cm
  4. 4. Ratio

    In ratio 3:6:8, what fraction is the third part?

    Answer: 8⁄17
  5. 5. Statistics

    Calculate the mean of: 40, 11, 10, 22, 6, 15, 9, 38. Give your answer to 2 decimal places

    Answer: 18.88

Friday 10 September 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00055 in standard form

    Answer: 5.5 × 10-4
  2. 2. Algebra

    Factorise: x² + 4x - 32

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

    Hypotenuse = 21cm, angle = 57°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 11.44cm
  4. 4. Ratio

    £329.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £188.00
  5. 5. Statistics

    Calculate the mean of: 17, 45, 6, 13, 41, 10

    Answer: 22