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Lintel Nov 29 - Dec 5 25 questions
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Monday 29 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0006 in standard form

    Answer: 6 × 10-4
  2. 2. Algebra

    Factorise: x² + 13x + 12

    Answer: (x + 12)(x + 1)
  3. 3. Geometry

    Hypotenuse = 35cm, angle = 39°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 27.2cm
  4. 4. Ratio

    Simplify the ratio 5 litres : 300 ml

    Answer: 50:3
  5. 5. Statistics

    Calculate the mean of: 19, 48, 48, 5, 20, 32, 19, 25

    Answer: 27

Tuesday 30 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0072 in standard form

    Answer: 7.2 × 10-3
  2. 2. Algebra

    Factorise: x² + 5x - 14

    Answer: (x + 7)(x - 2)
  3. 3. Geometry

    Adjacent = 16cm, angle = 30°. Find opposite. Give your answer to 2 decimal places

    Answer: 9.24cm
  4. 4. Ratio

    Simplify the ratio 3kg : 750g

    Answer: 4:1
  5. 5. Statistics

    Calculate the mean of: 32, 25, 11, 44, 49, 16

    Answer: 29.5

Wednesday 1 December 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 20,000 in standard form

    Answer: 2 × 104
  2. 2. Algebra

    Factorise: x² - 9x + 20

    Answer: (x - 4)(x - 5)
  3. 3. Geometry

    Adjacent = 12cm, angle = 49°. Find opposite. Give your answer to 2 decimal places

    Answer: 13.8cm
  4. 4. Ratio

    Red, blue and green marbles are in the ratio 12:6:5. What fraction of the marbles are blue?

    Answer: 6⁄23
  5. 5. Statistics

    Calculate the mean of: 12, 35, 26, 42, 25, 23. Give your answer to 2 decimal places

    Answer: 27.17

Thursday 2 December 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.063 in standard form

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

    Factorise: x² - 14x + 40

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

    Hypotenuse = 33cm, angle = 39°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 25.65cm
  4. 4. Ratio

    £301.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £215.00
  5. 5. Statistics

    Calculate the mean of: 50, 21, 38, 7, 14, 37, 11, 14

    Answer: 24

Friday 3 December 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 190,000,000 in standard form

    Answer: 1.9 × 108
  2. 2. Algebra

    Factorise: x² + x - 72

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

    Adjacent = 14cm, angle = 36°. Find opposite. Give your answer to 2 decimal places

    Answer: 10.17cm
  4. 4. Ratio

    In ratio 3:6:12, what fraction is the first part?

    Answer: 1⁄7
  5. 5. Statistics

    The mean of 4 numbers is 34. If 3 of them are 36, 41, 31, what is the missing number?

    Answer: 28