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Lintel Apr 5 - 11 25 questions
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Monday 5 April 2010

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 + x - 2

    Answer: (x + 2)(x - 1)
  3. 3. Geometry

    Adjacent = 19cm, angle = 48°. Find opposite. Give your answer to 2 decimal places

    Answer: 21.cm
  4. 4. Ratio

    Simplify the ratio £3 : 10p

    Answer: 30:1
  5. 5. Statistics

    Calculate the mean of: 11, 44, 18, 26, 50, 45, 35, 18. Give your answer to 2 decimal places

    Answer: 30.88

Tuesday 6 April 2010

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 + 6x - 72

    Answer: (x + 12)(x - 6)
  3. 3. Geometry

    Hypotenuse = 35cm, angle = 30°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 30.31cm
  4. 4. Ratio

    £287.00 is shared between A and B in the ratio 2:5. How much does A receive?

    Answer: £82.00
  5. 5. Statistics

    Calculate the mean of: 48, 14, 18, 6, 9, 26. Give your answer to 2 decimal places

    Answer: 20.17

Wednesday 7 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00082 in standard form

    Answer: 8.2 × 10-4
  2. 2. Algebra

    Factorise: x² - 3x - 70

    Answer: (x + 7)(x - 10)
  3. 3. Geometry

    Adjacent = 10cm, angle = 42°. Find opposite. Give your answer to 2 decimal places

    Answer: 9cm
  4. 4. Ratio

    In ratio 5:2:11, what fraction is the first part?

    Answer: 5⁄18
  5. 5. Statistics

    The mean of 4 numbers is 34. If 3 of them are 21, 50, 39, what is the missing number?

    Answer: 26

Thursday 8 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00036 in standard form

    Answer: 3.6 × 10-4
  2. 2. Algebra

    Factorise: x² + x - 42

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

    Adjacent = 19cm, angle = 56°. Find opposite. Give your answer to 2 decimal places

    Answer: 28.17cm
  4. 4. Ratio

    £245.00 is shared between A and B in the ratio 3:2. How much does A receive?

    Answer: £147.00
  5. 5. Statistics

    The mean of 4 numbers is 36. If 3 of them are 23, 44, 15, what is the missing number?

    Answer: 62

Friday 9 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 27,000 in standard form

    Answer: 2.7 × 104
  2. 2. Algebra

    Factorise: x² + 10x + 21

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

    Hypotenuse = 18cm, angle = 37°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.38cm
  4. 4. Ratio

    £312.00 is shared between A and B in the ratio 3:5. How much does A receive?

    Answer: £117.00
  5. 5. Statistics

    Calculate the mean of: 12, 42, 12, 24, 33, 49, 35. Give your answer to 2 decimal places

    Answer: 29.57