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Lintel Sep 15 - 21 25 questions
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Monday 15 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 450,000 in standard form

    Answer: 4.5 × 105
  2. 2. Algebra

    Factorise: x² - 3x - 18

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

    Adjacent = 26cm, angle = 42°. Find opposite. Give your answer to 2 decimal places

    Answer: 23.41cm
  4. 4. Ratio

    £252.00 is shared between A and B in the ratio 5:4. How much does A receive?

    Answer: £140.00
  5. 5. Statistics

    The mean of 5 numbers is 40. If 4 of them are 28, 29, 46, 48, what is the missing number?

    Answer: 49

Tuesday 16 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00069 in standard form

    Answer: 6.9 × 10-4
  2. 2. Algebra

    Factorise: x² + 5x - 6

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

    Hypotenuse = 29cm, angle = 58°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 15.37cm
  4. 4. Ratio

    Simplify the ratio 4 hours : 20 minutes

    Answer: 12:1
  5. 5. Statistics

    The mean of 5 numbers is 35. If 4 of them are 32, 27, 41, 44, what is the missing number?

    Answer: 31

Wednesday 17 September 2014

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 - 21x + 108

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

    Adjacent = 23cm, angle = 42°. Find opposite. Give your answer to 2 decimal places

    Answer: 20.71cm
  4. 4. Ratio

    Simplify the ratio m : 80cm

    Answer: 5:4
  5. 5. Statistics

    Calculate the mean of: 24, 33, 11, 26, 33, 34, 38, 26. Give your answer to 2 decimal places

    Answer: 28.13

Thursday 18 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 930,000 in standard form

    Answer: 9.3 × 105
  2. 2. Algebra

    Factorise: x² - 20x + 96

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

    Adjacent = 26cm, angle = 30°. Find opposite. Give your answer to 2 decimal places

    Answer: 15.01cm
  4. 4. Ratio

    £240.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £80.00
  5. 5. Statistics

    Calculate the mean of: 36, 7, 22, 41, 6, 30. Give your answer to 2 decimal places

    Answer: 23.67

Friday 19 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000025 in standard form

    Answer: 2.5 × 10-5
  2. 2. Algebra

    Factorise: x² + x - 6

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

    Hypotenuse = 20cm, angle = 34°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 16.58cm
  4. 4. Ratio

    In ratio 6:11:6, what fraction is the third part?

    Answer: 6⁄23
  5. 5. Statistics

    The mean of 4 numbers is 35. If 3 of them are 48, 48, 26, what is the missing number?

    Answer: 18