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Lintel Jul 3 - 9 25 questions
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Monday 3 July 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 210,000 in standard form

    Answer: 2.1 × 105
  2. 2. Algebra

    Factorise: x² - 6x - 16

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

    Adjacent = 10cm, angle = 47°. Find opposite. Give your answer to 2 decimal places

    Answer: 10.72cm
  4. 4. Ratio

    £360.00 is shared between A and B in the ratio 5:4. How much does A receive?

    Answer: £200.00
  5. 5. Statistics

    Calculate the mean of: 14, 9, 42, 33, 49, 28, 11, 11. Give your answer to 2 decimal places

    Answer: 24.63

Tuesday 4 July 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 710,000 in standard form

    Answer: 7.1 × 105
  2. 2. Algebra

    Factorise: x² - 12x + 27

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

    Adjacent = 15cm, angle = 36°. Find opposite. Give your answer to 2 decimal places

    Answer: 10.9cm
  4. 4. Ratio

    Divide 160 in the ratio 2:1:1

    Answer: 80, 40 and 40
  5. 5. Statistics

    The mean of 6 numbers is 40. If 5 of them are 44, 23, 44, 48, 15, what is the missing number?

    Answer: 66

Wednesday 5 July 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0038 in standard form

    Answer: 3.8 × 10-3
  2. 2. Algebra

    Factorise: x² - 7x - 8

    Answer: (x + 1)(x - 8)
  3. 3. Geometry

    Hypotenuse = 40cm, angle = 59°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 20.6cm
  4. 4. Ratio

    Simplify: 8:12:20

    Answer: 2:3:5
  5. 5. Statistics

    Calculate the mean of: 29, 42, 9, 30, 39, 34, 10. Give your answer to 2 decimal places

    Answer: 27.57

Thursday 6 July 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 400,000,000 in standard form

    Answer: 4 × 108
  2. 2. Algebra

    Factorise: x² - x - 72

    Answer: (x + 8)(x - 9)
  3. 3. Geometry

    Adjacent = 19cm, angle = 54°. Find opposite. Give your answer to 2 decimal places

    Answer: 26.15cm
  4. 4. Ratio

    Express the first part of 11:4 as a fraction in simplest form

    Answer: 11⁄15
  5. 5. Statistics

    Calculate the mean of: 23, 35, 25, 12, 15, 33, 19, 22

    Answer: 23

Friday 7 July 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00037 in standard form

    Answer: 3.7 × 10-4
  2. 2. Algebra

    Factorise: x² - 20x + 96

    Answer: (x - 8)(x - 12)
  3. 3. Geometry

    Hypotenuse = 31cm, angle = 25°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 28.cm
  4. 4. Ratio

    Simplify: 12:12:8

    Answer: 3:3:2
  5. 5. Statistics

    The mean of 5 numbers is 33. If 4 of them are 39, 45, 16, 46, what is the missing number?

    Answer: 19