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Lintel Jul 29 - Aug 4 25 questions
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Monday 29 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 2,300,000 in standard form

    Answer: 2.3 × 106
  2. 2. Algebra

    Factorise: x² + 8x - 48

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

    Hypotenuse = 16cm, angle = 58°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 8.48cm
  4. 4. Ratio

    £294.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £168.00
  5. 5. Statistics

    Calculate the mean of: 32, 11, 12, 24, 33, 22, 29, 22. Give your answer to 2 decimal places

    Answer: 23.13

Tuesday 30 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 3,600,000 in standard form

    Answer: 3.6 × 106
  2. 2. Algebra

    Factorise: x² - 2x - 8

    Answer: (x + 2)(x - 4)
  3. 3. Geometry

    Adjacent = 10cm, angle = 45°. Find opposite

    Answer: 10cm
  4. 4. Ratio

    In ratio 10:2:5, what fraction is the second part?

    Answer: 2⁄17
  5. 5. Statistics

    Calculate the mean of: 27, 14, 20, 12, 41, 48, 41, 44. Give your answer to 2 decimal places

    Answer: 30.88

Wednesday 31 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000081 in standard form

    Answer: 8.1 × 10-5
  2. 2. Algebra

    Factorise: x² + 2x - 15

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

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

    Answer: 30.86cm
  4. 4. Ratio

    In ratio 4:4:11, what fraction is the third part?

    Answer: 11⁄19
  5. 5. Statistics

    The mean of 5 numbers is 33. If 4 of them are 23, 37, 26, 47, what is the missing number?

    Answer: 32

Thursday 1 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 71,000 in standard form

    Answer: 7.1 × 104
  2. 2. Algebra

    Factorise: x² - 13x + 42

    Answer: (x - 6)(x - 7)
  3. 3. Geometry

    Hypotenuse = 36cm, angle = 60°. Find adjacent side

    Answer: 18cm
  4. 4. Ratio

    Red and blue counters are in the ratio 6:12. What fraction of the counters are blue?

    Answer: 2⁄3
  5. 5. Statistics

    Calculate the mean of: 49, 35, 49, 49, 42, 42, 44. Give your answer to 2 decimal places

    Answer: 44.29

Friday 2 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0056 in standard form

    Answer: 5.6 × 10-3
  2. 2. Algebra

    Factorise: x² + 10x + 9

    Answer: (x + 9)(x + 1)
  3. 3. Geometry

    Adjacent = 15cm, angle = 30°. Find opposite. Give your answer to 2 decimal places

    Answer: 8.66cm
  4. 4. Ratio

    Black and white marbles are in the ratio 13:15. What fraction of the marbles are black?

    Answer: 13⁄28
  5. 5. Statistics

    Calculate the mean of: 22, 16, 50, 5, 5, 16, 47

    Answer: 23