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Lintel Apr 23 - 29 25 questions
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Monday 23 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.067 in standard form

    Answer: 6.7 × 10-2
  2. 2. Algebra

    Factorise: x² - x - 56

    Answer: (x + 7)(x - 8)
  3. 3. Geometry

    Adjacent = 27cm, angle = 56°. Find opposite. Give your answer to 2 decimal places

    Answer: 40.03cm
  4. 4. Ratio

    £217.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £155.00
  5. 5. Statistics

    Calculate the mean of: 9, 34, 36, 36, 22, 43

    Answer: 30

Tuesday 24 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0015 in standard form

    Answer: 1.5 × 10-3
  2. 2. Algebra

    Factorise: x² + 7x - 18

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

    Adjacent = 29cm, angle = 30°. Find opposite. Give your answer to 2 decimal places

    Answer: 16.74cm
  4. 4. Ratio

    Divide 240 in the ratio 2:2:1

    Answer: 96, 96 and 48
  5. 5. Statistics

    The mean of 6 numbers is 30. If 5 of them are 31, 49, 21, 18, 20, what is the missing number?

    Answer: 41

Wednesday 25 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 520,000,000 in standard form

    Answer: 5.2 × 108
  2. 2. Algebra

    Factorise: x² + 10x - 11

    Answer: (x + 11)(x - 1)
  3. 3. Geometry

    Hypotenuse = 19cm, angle = 39°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.77cm
  4. 4. Ratio

    Red and blue counters are in the ratio 10:11. What fraction of the counters are red?

    Answer: 10⁄21
  5. 5. Statistics

    Calculate the mean of: 37, 38, 38, 46, 39, 48, 32. Give your answer to 2 decimal places

    Answer: 39.71

Thursday 26 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0005 in standard form

    Answer: 5 × 10-4
  2. 2. Algebra

    Factorise: x² - 11x + 10

    Answer: (x - 1)(x - 10)
  3. 3. Geometry

    Adjacent = 15cm, angle = 47°. Find opposite. Give your answer to 2 decimal places

    Answer: 16.09cm
  4. 4. Ratio

    Simplify: 16:24:20

    Answer: 4:6:5
  5. 5. Statistics

    Calculate the mean of: 46, 33, 32, 36, 23, 30, 38

    Answer: 34

Friday 27 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 49,000 in standard form

    Answer: 4.9 × 104
  2. 2. Algebra

    Factorise: x² - 3x - 40

    Answer: (x + 5)(x - 8)
  3. 3. Geometry

    Hypotenuse = 17cm, angle = 65°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 7.18cm
  4. 4. Ratio

    Divide 216 in the ratio 1:2:1

    Answer: 54, 108 and 54
  5. 5. Statistics

    The mean of 5 numbers is 31. If 4 of them are 47, 19, 41, 38, what is the missing number?

    Answer: 10