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Lintel Aug 21 - 27 25 questions
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Monday 21 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 9,000,000 in standard form

    Answer: 9 × 106
  2. 2. Algebra

    Factorise: x² + x - 6

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

    Adjacent = 26cm, angle = 36°. Find opposite. Give your answer to 2 decimal places

    Answer: 18.89cm
  4. 4. Ratio

    In ratio 5:4:8, what fraction is the first part?

    Answer: 5⁄17
  5. 5. Statistics

    Calculate the mean of: 13, 20, 29, 13, 12, 26. Give your answer to 2 decimal places

    Answer: 18.83

Tuesday 22 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000088 in standard form

    Answer: 8.8 × 10-5
  2. 2. Algebra

    Factorise: x² - 7x - 8

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

    Hypotenuse = 27cm, angle = 33°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 22.64cm
  4. 4. Ratio

    £198.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £66.00
  5. 5. Statistics

    Calculate the mean of: 22, 41, 32, 16, 26, 40

    Answer: 29.5

Wednesday 23 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 63,000 in standard form

    Answer: 6.3 × 104
  2. 2. Algebra

    Factorise: x² - 9x - 36

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

    Adjacent = 17cm, angle = 31°. Find opposite. Give your answer to 2 decimal places

    Answer: 10.21cm
  4. 4. Ratio

    Black, white and yellow beads are in the ratio 3:11:10. What fraction of the beads are yellow?

    Answer: 5⁄12
  5. 5. Statistics

    The mean of 4 numbers is 34. If 3 of them are 31, 36, 50, what is the missing number?

    Answer: 19

Thursday 24 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 29,000,000 in standard form

    Answer: 2.9 × 107
  2. 2. Algebra

    Factorise: x² - 3x - 70

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

    Adjacent = 16cm, angle = 36°. Find opposite. Give your answer to 2 decimal places

    Answer: 11.62cm
  4. 4. Ratio

    Divide 232 in the ratio 1:4:3

    Answer: 29, 116 and 87
  5. 5. Statistics

    Calculate the mean of: 36, 46, 21, 30, 9, 18, 22

    Answer: 26

Friday 25 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0083 in standard form

    Answer: 8.3 × 10-3
  2. 2. Algebra

    Factorise: x² - 7x - 30

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

    Hypotenuse = 40cm, angle = 30°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 34.64cm
  4. 4. Ratio

    Simplify: 12:16:24

    Answer: 3:4:6
  5. 5. Statistics

    The mean of 4 numbers is 31. If 3 of them are 42, 24, 29, what is the missing number?

    Answer: 29