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Lintel Jul 11 - 17 25 questions
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Monday 11 July 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 300,000 in standard form

    Answer: 3 × 105
  2. 2. Algebra

    Factorise: x² - 3x - 28

    Answer: (x + 4)(x - 7)
  3. 3. Geometry

    Adjacent = 28cm, angle = 41°. Find opposite. Give your answer to 2 decimal places

    Answer: 24.34cm
  4. 4. Ratio

    Express the second part of 2:5 as a fraction in simplest form

    Answer: 5⁄7
  5. 5. Statistics

    The mean of 4 numbers is 33. If 3 of them are 25, 45, 35, what is the missing number?

    Answer: 27

Tuesday 12 July 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000015 in standard form

    Answer: 1.5 × 10-5
  2. 2. Algebra

    Factorise: x² + 4x - 5

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

    Hypotenuse = 36cm, angle = 58°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 19.08cm
  4. 4. Ratio

    Divide 96 in the ratio 1:2:1

    Answer: 24, 48 and 24
  5. 5. Statistics

    The mean of 5 numbers is 36. If 4 of them are 50, 47, 45, 15, what is the missing number?

    Answer: 23

Wednesday 13 July 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 960,000 in standard form

    Answer: 9.6 × 105
  2. 2. Algebra

    Factorise: x² - 5x + 6

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

    Adjacent = 12cm, angle = 50°. Find opposite. Give your answer to 2 decimal places

    Answer: 14.3cm
  4. 4. Ratio

    Simplify: 16:12:8

    Answer: 4:3:2
  5. 5. Statistics

    Calculate the mean of: 42, 23, 17, 46, 16, 8, 6, 47. Give your answer to 2 decimal places

    Answer: 25.63

Thursday 14 July 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 2,600,000 in standard form

    Answer: 2.6 × 106
  2. 2. Algebra

    Factorise: x² + 4x + 3

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

    Adjacent = 29cm, angle = 39°. Find opposite. Give your answer to 2 decimal places

    Answer: 23.48cm
  4. 4. Ratio

    £273.00 is shared between A and B in the ratio 2:5. How much does A receive?

    Answer: £78.00
  5. 5. Statistics

    The mean of 6 numbers is 40. If 5 of them are 38, 44, 28, 40, 46, what is the missing number?

    Answer: 44

Friday 15 July 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0094 in standard form

    Answer: 9.4 × 10-3
  2. 2. Algebra

    Factorise: x² - 6x - 40

    Answer: (x + 4)(x - 10)
  3. 3. Geometry

    Hypotenuse = 34cm, angle = 45°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 24.04cm
  4. 4. Ratio

    Simplify the ratio 7m : 30cm

    Answer: 70:3
  5. 5. Statistics

    Calculate the mean of: 13, 20, 9, 14, 5, 24. Give your answer to 2 decimal places

    Answer: 14.17