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Lintel Aug 12 - 18 25 questions
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Monday 12 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 92,000 in standard form

    Answer: 9.2 × 104
  2. 2. Algebra

    Factorise: x² - x - 72

    Answer: (x + 8)(x - 9)
  3. 3. Geometry

    Adjacent = 18cm, angle = 38°. Find opposite. Give your answer to 2 decimal places

    Answer: 14.06cm
  4. 4. Ratio

    Simplify the ratio £1 : 45p

    Answer: 20:9
  5. 5. Statistics

    Calculate the mean of: 37, 24, 15, 39, 24, 13. Give your answer to 2 decimal places

    Answer: 25.33

Tuesday 13 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00014 in standard form

    Answer: 1.4 × 10-4
  2. 2. Algebra

    Factorise: x² - 7x + 6

    Answer: (x - 1)(x - 6)
  3. 3. Geometry

    Hypotenuse = 36cm, angle = 31°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 30.86cm
  4. 4. Ratio

    Simplify the ratio 2m : 95cm

    Answer: 40:19
  5. 5. Statistics

    The mean of 5 numbers is 31. If 4 of them are 50, 30, 16, 31, what is the missing number?

    Answer: 28

Wednesday 14 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000086 in standard form

    Answer: 8.6 × 10-5
  2. 2. Algebra

    Factorise: x² - 16x + 64

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

    Hypotenuse = 38cm, angle = 28°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 33.55cm
  4. 4. Ratio

    Express the second part of 9:11 as a fraction in simplest form

    Answer: 11⁄20
  5. 5. Statistics

    Calculate the mean of: 48, 44, 17, 32, 8, 11, 15, 26. Give your answer to 2 decimal places

    Answer: 25.13

Thursday 15 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 19,000 in standard form

    Answer: 1.9 × 104
  2. 2. Algebra

    Factorise: x² - 3x - 54

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

    Adjacent = 18cm, angle = 50°. Find opposite. Give your answer to 2 decimal places

    Answer: 21.45cm
  4. 4. Ratio

    Express the second part of 10:14 as a fraction in simplest form

    Answer: 7⁄12
  5. 5. Statistics

    The mean of 5 numbers is 36. If 4 of them are 29, 40, 33, 41, what is the missing number?

    Answer: 37

Friday 16 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.047 in standard form

    Answer: 4.7 × 10-2
  2. 2. Algebra

    Factorise: x² + 6x - 27

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

    Hypotenuse = 34cm, angle = 46°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 23.62cm
  4. 4. Ratio

    Simplify: 12:9:18

    Answer: 4:3:6
  5. 5. Statistics

    The mean of 5 numbers is 38. If 4 of them are 30, 23, 50, 41, what is the missing number?

    Answer: 46