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Lintel Nov 14 - 20 25 questions
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Monday 14 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 74,000 in standard form

    Answer: 7.4 × 104
  2. 2. Algebra

    Factorise: x² + 22x + 121

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

    Hypotenuse = 29cm, angle = 54°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 17.05cm
  4. 4. Ratio

    Divide 96 in the ratio 3:4:1

    Answer: 36, 48 and 12
  5. 5. Statistics

    Calculate the mean of: 15, 6, 26, 29, 18, 15, 7. Give your answer to 2 decimal places

    Answer: 16.57

Tuesday 15 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0051 in standard form

    Answer: 5.1 × 10-3
  2. 2. Algebra

    Factorise: x² - 4x - 32

    Answer: (x + 4)(x - 8)
  3. 3. Geometry

    Adjacent = 14cm, angle = 31°. Find opposite. Give your answer to 2 decimal places

    Answer: 8.41cm
  4. 4. Ratio

    Red and blue sweets are in the ratio 15:4. What fraction of the sweets are red?

    Answer: 15⁄19
  5. 5. Statistics

    The mean of 6 numbers is 36. If 5 of them are 48, 23, 29, 41, 18, what is the missing number?

    Answer: 57

Wednesday 16 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 850,000 in standard form

    Answer: 8.5 × 105
  2. 2. Algebra

    Factorise: x² - 5x - 50

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

    Hypotenuse = 18cm, angle = 34°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.92cm
  4. 4. Ratio

    Simplify: 4:4:8

    Answer: 1:1:2
  5. 5. Statistics

    The mean of 6 numbers is 27. If 5 of them are 30, 35, 29, 19, 38, what is the missing number?

    Answer: 11

Thursday 17 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000043 in standard form

    Answer: 4.3 × 10-5
  2. 2. Algebra

    Factorise: x² - 18x + 77

    Answer: (x - 7)(x - 11)
  3. 3. Geometry

    Adjacent = 17cm, angle = 51°. Find opposite. Give your answer to 2 decimal places

    Answer: 20.99cm
  4. 4. Ratio

    Simplify: 12:4:12

    Answer: 3:1:3
  5. 5. Statistics

    Calculate the mean of: 16, 6, 47, 34, 49, 36, 29, 27

    Answer: 30.5

Friday 18 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.019 in standard form

    Answer: 1.9 × 10-2
  2. 2. Algebra

    Factorise: x² + 19x + 84

    Answer: (x + 12)(x + 7)
  3. 3. Geometry

    Adjacent = 30cm, angle = 52°. Find opposite. Give your answer to 2 decimal places

    Answer: 38.4cm
  4. 4. Ratio

    Divide 40 in the ratio 1:1:2

    Answer: 10, 10 and 20
  5. 5. Statistics

    Calculate the mean of: 40, 44, 24, 19, 26, 28. Give your answer to 2 decimal places

    Answer: 30.17