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Lintel Oct 8 - 14 25 questions
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Monday 8 October 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0023 in standard form

    Answer: 2.3 × 10-3
  2. 2. Algebra

    Factorise: x² - 6x - 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

    In ratio 7:12:8, what fraction is the third part?

    Answer: 8⁄27
  5. 5. Statistics

    The mean of 5 numbers is 31. If 4 of them are 37, 20, 38, 17, what is the missing number?

    Answer: 43

Tuesday 9 October 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 7,300,000 in standard form

    Answer: 7.3 × 106
  2. 2. Algebra

    Factorise: x² - x - 12

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

    Adjacent = 18cm, angle = 55°. Find opposite. Give your answer to 2 decimal places

    Answer: 25.71cm
  4. 4. Ratio

    £245.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £140.00
  5. 5. Statistics

    Calculate the mean of: 5, 19, 5, 25, 36, 14, 35. Give your answer to 2 decimal places

    Answer: 19.86

Wednesday 10 October 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 930,000,000 in standard form

    Answer: 9.3 × 108
  2. 2. Algebra

    Factorise: x² + x - 6

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

    Hypotenuse = 30cm, angle = 33°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 25.16cm
  4. 4. Ratio

    £280.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £160.00
  5. 5. Statistics

    Calculate the mean of: 41, 47, 43, 16, 25, 14, 49. Give your answer to 2 decimal places

    Answer: 33.57

Thursday 11 October 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00084 in standard form

    Answer: 8.4 × 10-4
  2. 2. Algebra

    Factorise: x² + 12x + 36

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

    Adjacent = 22cm, angle = 50°. Find opposite. Give your answer to 2 decimal places

    Answer: 26.22cm
  4. 4. Ratio

    £176.00 is shared between A and B in the ratio 3:5. How much does A receive?

    Answer: £66.00
  5. 5. Statistics

    The mean of 6 numbers is 32. If 5 of them are 48, 26, 32, 47, 19, what is the missing number?

    Answer: 20

Friday 12 October 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 380,000,000 in standard form

    Answer: 3.8 × 108
  2. 2. Algebra

    Factorise: x² + 10x + 16

    Answer: (x + 8)(x + 2)
  3. 3. Geometry

    Hypotenuse = 39cm, angle = 59°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 20.09cm
  4. 4. Ratio

    £161.00 is shared between A and B in the ratio 3:4. How much does A receive?

    Answer: £69.00
  5. 5. Statistics

    The mean of 6 numbers is 35. If 5 of them are 41, 34, 30, 28, 40, what is the missing number?

    Answer: 37