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Lintel Jan 11 - 17 25 questions
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Monday 11 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000067 in standard form

    Answer: 6.7 × 10-5
  2. 2. Algebra

    Factorise: x² + 18x + 77

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

    Adjacent = 16cm, angle = 39°. Find opposite. Give your answer to 2 decimal places

    Answer: 12.96cm
  4. 4. Ratio

    £189.00 is shared between A and B in the ratio 5:4. How much does A receive?

    Answer: £105.00
  5. 5. Statistics

    Calculate the mean of: 15, 47, 25, 50, 47, 14

    Answer: 33

Tuesday 12 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 37,000 in standard form

    Answer: 3.7 × 104
  2. 2. Algebra

    Factorise: x² + 20x + 96

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

    Hypotenuse = 15cm, angle = 49°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 9.84cm
  4. 4. Ratio

    In ratio 12:5:12, what fraction is the third part?

    Answer: 12⁄29
  5. 5. Statistics

    Calculate the mean of: 27, 31, 30, 32, 19, 17

    Answer: 26

Wednesday 13 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000089 in standard form

    Answer: 8.9 × 10-5
  2. 2. Algebra

    Factorise: x² - 6x - 16

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

    Adjacent = 12cm, angle = 59°. Find opposite. Give your answer to 2 decimal places

    Answer: 19.97cm
  4. 4. Ratio

    £140.00 is shared between A and B in the ratio 3:4. How much does A receive?

    Answer: £60.00
  5. 5. Statistics

    The mean of 4 numbers is 31. If 3 of them are 26, 25, 25, what is the missing number?

    Answer: 48

Thursday 14 January 2016

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 + 7x - 30

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

    Adjacent = 18cm, angle = 54°. Find opposite. Give your answer to 2 decimal places

    Answer: 24.77cm
  4. 4. Ratio

    Divide 260 in the ratio 4:3:3

    Answer: 104, 78 and 78
  5. 5. Statistics

    Calculate the mean of: 7, 36, 30, 40, 27, 5, 32, 13

    Answer: 23.75

Friday 15 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 460,000,000 in standard form

    Answer: 4.6 × 108
  2. 2. Algebra

    Factorise: x² - 17x + 60

    Answer: (x - 5)(x - 12)
  3. 3. Geometry

    Hypotenuse = 23cm, angle = 31°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 19.71cm
  4. 4. Ratio

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

    Answer: 11⁄15
  5. 5. Statistics

    The mean of 5 numbers is 31. If 4 of them are 28, 41, 22, 32, what is the missing number?

    Answer: 32