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Lintel Jul 28 - Aug 3 25 questions
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Monday 28 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0074 in standard form

    Answer: 7.4 × 10-3
  2. 2. Algebra

    Factorise: x² - 12x + 27

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

    Adjacent = 19cm, angle = 49°. Find opposite. Give your answer to 2 decimal places

    Answer: 21.86cm
  4. 4. Ratio

    £360.00 is shared between A and B in the ratio 5:3. How much does A receive?

    Answer: £225.00
  5. 5. Statistics

    The mean of 4 numbers is 36. If 3 of them are 37, 37, 49, what is the missing number?

    Answer: 21

Tuesday 29 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 77,000,000 in standard form

    Answer: 7.7 × 107
  2. 2. Algebra

    Factorise: x² + 5x - 6

    Answer: (x + 6)(x - 1)
  3. 3. Geometry

    Hypotenuse = 30cm, angle = 57°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 16.34cm
  4. 4. Ratio

    In ratio 6:12:3, what fraction is the second part?

    Answer: 4⁄7
  5. 5. Statistics

    Calculate the mean of: 26, 10, 30, 25, 17, 17, 16, 9

    Answer: 18.75

Wednesday 30 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 23,000 in standard form

    Answer: 2.3 × 104
  2. 2. Algebra

    Factorise: x² + 6x - 16

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

    Adjacent = 16cm, angle = 58°. Find opposite. Give your answer to 2 decimal places

    Answer: 25.61cm
  4. 4. Ratio

    In ratio 9:8:7, what fraction is the first part?

    Answer: 3⁄8
  5. 5. Statistics

    Calculate the mean of: 12, 21, 18, 19, 41, 14, 11. Give your answer to 2 decimal places

    Answer: 19.43

Thursday 31 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00057 in standard form

    Answer: 5.7 × 10-4
  2. 2. Algebra

    Factorise: x² + 3x - 108

    Answer: (x + 12)(x - 9)
  3. 3. Geometry

    Hypotenuse = 22cm, angle = 62°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 10.33cm
  4. 4. Ratio

    In ratio 4:4:2, what fraction is the first part?

    Answer: 2⁄5
  5. 5. Statistics

    The mean of 5 numbers is 30. If 4 of them are 20, 21, 20, 26, what is the missing number?

    Answer: 63

Friday 1 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 790,000 in standard form

    Answer: 7.9 × 105
  2. 2. Algebra

    Factorise: x² + 7x - 30

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

    Hypotenuse = 33cm, angle = 46°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 22.92cm
  4. 4. Ratio

    Divide 216 in the ratio 1:3:4

    Answer: 27, 81 and 108
  5. 5. Statistics

    Calculate the mean of: 10, 40, 35, 31, 23, 35, 50, 21. Give your answer to 2 decimal places

    Answer: 30.63