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Lintel Aug 16 - 22 25 questions
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Monday 16 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 7,900,000 in standard form

    Answer: 7.9 × 106
  2. 2. Algebra

    Factorise: x² - 7x - 18

    Answer: (x + 2)(x - 9)
  3. 3. Geometry

    Adjacent = 27cm, angle = 58°. Find opposite. Give your answer to 2 decimal places

    Answer: 43.21cm
  4. 4. Ratio

    In ratio 4:10:4, what fraction is the second part?

    Answer: 5⁄9
  5. 5. Statistics

    Calculate the mean of: 31, 47, 39, 7, 28, 18, 8, 41. Give your answer to 2 decimal places

    Answer: 27.38

Tuesday 17 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00029 in standard form

    Answer: 2.9 × 10-4
  2. 2. Algebra

    Factorise: x² - 21x + 108

    Answer: (x - 9)(x - 12)
  3. 3. Geometry

    Hypotenuse = 39cm, angle = 55°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 22.37cm
  4. 4. Ratio

    Simplify the ratio 1 hour : 25 minutes

    Answer: 12:5
  5. 5. Statistics

    The mean of 5 numbers is 29. If 4 of them are 20, 44, 23, 16, what is the missing number?

    Answer: 42

Wednesday 18 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.092 in standard form

    Answer: 9.2 × 10-2
  2. 2. Algebra

    Factorise: x² + 5x + 6

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

    Hypotenuse = 35cm, angle = 56°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 19.57cm
  4. 4. Ratio

    In ratio 3:9:6, what fraction is the third part?

    Answer: 1⁄3
  5. 5. Statistics

    The mean of 5 numbers is 39. If 4 of them are 34, 49, 35, 23, what is the missing number?

    Answer: 54

Thursday 19 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 26,000 in standard form

    Answer: 2.6 × 104
  2. 2. Algebra

    Factorise: x² + 5x - 50

    Answer: (x + 10)(x - 5)
  3. 3. Geometry

    Adjacent = 25cm, angle = 53°. Find opposite. Give your answer to 2 decimal places

    Answer: 33.18cm
  4. 4. Ratio

    In ratio 11:9:12, what fraction is the third part?

    Answer: 3⁄8
  5. 5. Statistics

    Calculate the mean of: 46, 37, 39, 31, 28, 20

    Answer: 33.5

Friday 20 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0064 in standard form

    Answer: 6.4 × 10-3
  2. 2. Algebra

    Factorise: x² - 2x - 48

    Answer: (x + 6)(x - 8)
  3. 3. Geometry

    Hypotenuse = 30cm, angle = 29°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 26.24cm
  4. 4. Ratio

    £186.00 is shared between A and B in the ratio 2:1. How much does A receive?

    Answer: £124.00
  5. 5. Statistics

    The mean of 5 numbers is 30. If 4 of them are 20, 30, 32, 21, what is the missing number?

    Answer: 47