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Lintel Oct 2 - 8 25 questions
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Monday 2 October 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0002 in standard form

    Answer: 2 × 10-4
  2. 2. Algebra

    Factorise: x² + 12x + 11

    Answer: (x + 11)(x + 1)
  3. 3. Geometry

    Adjacent = 12cm, angle = 57°. Find opposite. Give your answer to 2 decimal places

    Answer: 18.48cm
  4. 4. Ratio

    £294.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £210.00
  5. 5. Statistics

    Calculate the mean of: 46, 44, 25, 36, 7, 5. Give your answer to 2 decimal places

    Answer: 27.17

Tuesday 3 October 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 1,200,000 in standard form

    Answer: 1.2 × 106
  2. 2. Algebra

    Factorise: x² + 8x - 9

    Answer: (x + 9)(x - 1)
  3. 3. Geometry

    Hypotenuse = 18cm, angle = 65°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 7.61cm
  4. 4. Ratio

    £405.00 is shared between A and B in the ratio 5:4. How much does A receive?

    Answer: £225.00
  5. 5. Statistics

    The mean of 5 numbers is 37. If 4 of them are 38, 28, 48, 45, what is the missing number?

    Answer: 26

Wednesday 4 October 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 5,500,000 in standard form

    Answer: 5.5 × 106
  2. 2. Algebra

    Factorise: x² - 5x - 14

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

    Hypotenuse = 40cm, angle = 42°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 29.73cm
  4. 4. Ratio

    Divide 91 in the ratio 2:4:1

    Answer: 26, 52 and 13
  5. 5. Statistics

    Calculate the mean of: 34, 34, 42, 41, 8, 19, 14. Give your answer to 2 decimal places

    Answer: 27.43

Thursday 5 October 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0079 in standard form

    Answer: 7.9 × 10-3
  2. 2. Algebra

    Factorise: x² - 9x + 14

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

    Adjacent = 28cm, angle = 31°. Find opposite. Give your answer to 2 decimal places

    Answer: 16.82cm
  4. 4. Ratio

    Red and blue sweets are in the ratio 14:5. What fraction of the sweets are blue?

    Answer: 5⁄19
  5. 5. Statistics

    The mean of 5 numbers is 30. If 4 of them are 31, 24, 20, 44, what is the missing number?

    Answer: 31

Friday 6 October 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 750,000 in standard form

    Answer: 7.5 × 105
  2. 2. Algebra

    Factorise: x² - x - 56

    Answer: (x + 7)(x - 8)
  3. 3. Geometry

    Hypotenuse = 34cm, angle = 61°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 16.48cm
  4. 4. Ratio

    Orange and purple beads are in the ratio 3:9. What fraction of the beads are purple?

    Answer: 3⁄4
  5. 5. Statistics

    The mean of 4 numbers is 36. If 3 of them are 23, 50, 40, what is the missing number?

    Answer: 31