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Lintel Aug 22 - 28 25 questions
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Monday 22 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 37,000,000 in standard form

    Answer: 3.7 × 107
  2. 2. Algebra

    Factorise: x² - 16x + 48

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

    Hypotenuse = 36cm, angle = 36°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 29.12cm
  4. 4. Ratio

    £217.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £124.00
  5. 5. Statistics

    Calculate the mean of: 17, 21, 17, 20, 41, 45. Give your answer to 2 decimal places

    Answer: 26.83

Tuesday 23 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000085 in standard form

    Answer: 8.5 × 10-5
  2. 2. Algebra

    Factorise: x² - 2x - 15

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

    Adjacent = 12cm, angle = 44°. Find opposite. Give your answer to 2 decimal places

    Answer: 11.59cm
  4. 4. Ratio

    In ratio 8:6:7, what fraction is the second part?

    Answer: 2⁄7
  5. 5. Statistics

    The mean of 4 numbers is 35. If 3 of them are 43, 34, 50, what is the missing number?

    Answer: 13

Wednesday 24 August 2011

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 - x - 90

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

    Adjacent = 27cm, angle = 39°. Find opposite. Give your answer to 2 decimal places

    Answer: 21.86cm
  4. 4. Ratio

    Express the first part of 10:7 as a fraction in simplest form

    Answer: 10⁄17
  5. 5. Statistics

    Calculate the mean of: 33, 26, 26, 39, 22, 42, 16. Give your answer to 2 decimal places

    Answer: 29.14

Thursday 25 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 29,000 in standard form

    Answer: 2.9 × 104
  2. 2. Algebra

    Factorise: x² - 11x + 18

    Answer: (x - 2)(x - 9)
  3. 3. Geometry

    Hypotenuse = 22cm, angle = 59°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 11.33cm
  4. 4. Ratio

    Divide 75 in the ratio 3:1:1

    Answer: 45, 15 and 15
  5. 5. Statistics

    The mean of 4 numbers is 40. If 3 of them are 20, 35, 49, what is the missing number?

    Answer: 56

Friday 26 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00007 in standard form

    Answer: 7 × 10-5
  2. 2. Algebra

    Factorise: x² + 4x - 77

    Answer: (x + 11)(x - 7)
  3. 3. Geometry

    Adjacent = 25cm, angle = 34°. Find opposite. Give your answer to 2 decimal places

    Answer: 16.86cm
  4. 4. Ratio

    Simplify: 4:12:10

    Answer: 2:6:5
  5. 5. Statistics

    The mean of 4 numbers is 35. If 3 of them are 18, 37, 23, what is the missing number?

    Answer: 62