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Lintel Aug 9 - 15 25 questions
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Monday 9 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.083 in standard form

    Answer: 8.3 × 10-2
  2. 2. Algebra

    Factorise: x² - x - 6

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

    Adjacent = 19cm, angle = 41°. Find opposite. Give your answer to 2 decimal places

    Answer: 16.52cm
  4. 4. Ratio

    Divide 126 in the ratio 2:3:4

    Answer: 28, 42 and 56
  5. 5. Statistics

    Calculate the mean of: 20, 22, 24, 34, 24, 50

    Answer: 29

Tuesday 10 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0007 in standard form

    Answer: 7 × 10-4
  2. 2. Algebra

    Factorise: x² + 9x - 22

    Answer: (x + 11)(x - 2)
  3. 3. Geometry

    Hypotenuse = 34cm, angle = 63°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 15.44cm
  4. 4. Ratio

    Divide 126 in the ratio 4:4:1

    Answer: 56, 56 and 14
  5. 5. Statistics

    Calculate the mean of: 33, 20, 30, 34, 45, 47, 8, 35

    Answer: 31.5

Wednesday 11 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 840,000,000 in standard form

    Answer: 8.4 × 108
  2. 2. Algebra

    Factorise: x² + 5x - 50

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

    Adjacent = 27cm, angle = 46°. Find opposite. Give your answer to 2 decimal places

    Answer: 27.96cm
  4. 4. Ratio

    Simplify: 9:6:6

    Answer: 3:2:2
  5. 5. Statistics

    The mean of 5 numbers is 33. If 4 of them are 41, 42, 19, 37, what is the missing number?

    Answer: 26

Thursday 12 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00093 in standard form

    Answer: 9.3 × 10-4
  2. 2. Algebra

    Factorise: x² + 2x - 63

    Answer: (x + 9)(x - 7)
  3. 3. Geometry

    Hypotenuse = 17cm, angle = 46°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 11.81cm
  4. 4. Ratio

    Simplify: 12:12:16

    Answer: 3:3:4
  5. 5. Statistics

    The mean of 4 numbers is 35. If 3 of them are 38, 38, 46, what is the missing number?

    Answer: 18

Friday 13 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 52,000,000 in standard form

    Answer: 5.2 × 107
  2. 2. Algebra

    Factorise: x² + 7x + 10

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

    Adjacent = 23cm, angle = 35°. Find opposite. Give your answer to 2 decimal places

    Answer: 16.cm
  4. 4. Ratio

    Simplify: 12:12:18

    Answer: 2:2:3
  5. 5. Statistics

    Calculate the mean of: 10, 22, 25, 7, 45, 20, 41. Give your answer to 2 decimal places

    Answer: 24.29