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Lintel Nov 20 - 26 25 questions
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Monday 20 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 110,000 in standard form

    Answer: 1.1 × 105
  2. 2. Algebra

    Factorise: x² + 3x - 28

    Answer: (x + 7)(x - 4)
  3. 3. Geometry

    Adjacent = 21cm, angle = 38°. Find opposite. Give your answer to 2 decimal places

    Answer: 16.41cm
  4. 4. Ratio

    Divide 90 in the ratio 2:4:3

    Answer: 20, 40 and 30
  5. 5. Statistics

    Calculate the mean of: 48, 49, 32, 20, 43, 43, 26. Give your answer to 2 decimal places

    Answer: 37.29

Tuesday 21 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.065 in standard form

    Answer: 6.5 × 10-2
  2. 2. Algebra

    Factorise: x² + 2x - 80

    Answer: (x + 10)(x - 8)
  3. 3. Geometry

    Hypotenuse = 37cm, angle = 47°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 25.23cm
  4. 4. Ratio

    Orange and purple marbles are in the ratio 4:6. What fraction of the marbles are purple?

    Answer: 3⁄5
  5. 5. Statistics

    The mean of 4 numbers is 30. If 3 of them are 44, 27, 29, what is the missing number?

    Answer: 20

Wednesday 22 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 550,000 in standard form

    Answer: 5.5 × 105
  2. 2. Algebra

    Factorise: x² - 2x - 48

    Answer: (x + 6)(x - 8)
  3. 3. Geometry

    Adjacent = 29cm, angle = 55°. Find opposite. Give your answer to 2 decimal places

    Answer: 41.42cm
  4. 4. Ratio

    Simplify: 10:4:8

    Answer: 5:2:4
  5. 5. Statistics

    The mean of 4 numbers is 29. If 3 of them are 28, 20, 27, what is the missing number?

    Answer: 41

Thursday 23 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.035 in standard form

    Answer: 3.5 × 10-2
  2. 2. Algebra

    Factorise: x² - 5x - 14

    Answer: (x + 2)(x - 7)
  3. 3. Geometry

    Hypotenuse = 17cm, angle = 61°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 8.24cm
  4. 4. Ratio

    Express the first part of 12:13 as a fraction in simplest form

    Answer: 12⁄25
  5. 5. Statistics

    Calculate the mean of: 50, 5, 22, 32, 29, 19, 48, 36. Give your answer to 2 decimal places

    Answer: 30.13

Friday 24 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.034 in standard form

    Answer: 3.4 × 10-2
  2. 2. Algebra

    Factorise: x² + 12x + 27

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

    Hypotenuse = 35cm, angle = 47°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 23.87cm
  4. 4. Ratio

    £294.00 is shared between A and B in the ratio 2:1. How much does A receive?

    Answer: £196.00
  5. 5. Statistics

    The mean of 6 numbers is 36. If 5 of them are 28, 43, 21, 40, 31, what is the missing number?

    Answer: 53