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Lintel Dec 8 - 14 25 questions
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Monday 8 December 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 46,000 in standard form

    Answer: 4.6 × 104
  2. 2. Algebra

    Factorise: x² - 11x + 10

    Answer: (x - 1)(x - 10)
  3. 3. Geometry

    Adjacent = 30cm, angle = 44°. Find opposite. Give your answer to 2 decimal places

    Answer: 28.97cm
  4. 4. Ratio

    £245.00 is shared between A and B in the ratio 2:5. How much does A receive?

    Answer: £70.00
  5. 5. Statistics

    The mean of 4 numbers is 26. If 3 of them are 19, 30, 50, what is the missing number?

    Answer: 5

Tuesday 9 December 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00002 in standard form

    Answer: 2 × 10-5
  2. 2. Algebra

    Factorise: x² + 4x - 5

    Answer: (x + 5)(x - 1)
  3. 3. Geometry

    Hypotenuse = 15cm, angle = 41°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 11.32cm
  4. 4. Ratio

    £208.00 is shared between A and B in the ratio 5:3. How much does A receive?

    Answer: £130.00
  5. 5. Statistics

    Calculate the mean of: 38, 16, 13, 27, 37, 42, 28. Give your answer to 2 decimal places

    Answer: 28.71

Wednesday 10 December 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.093 in standard form

    Answer: 9.3 × 10-2
  2. 2. Algebra

    Factorise: x² - 6x - 27

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

    Adjacent = 25cm, angle = 45°. Find opposite

    Answer: 25cm
  4. 4. Ratio

    £147.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £84.00
  5. 5. Statistics

    Calculate the mean of: 14, 7, 19, 31, 49, 21

    Answer: 23.5

Thursday 11 December 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 70,000 in standard form

    Answer: 7 × 104
  2. 2. Algebra

    Factorise: x² - 2x - 48

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

    Hypotenuse = 28cm, angle = 38°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 22.06cm
  4. 4. Ratio

    £175.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £125.00
  5. 5. Statistics

    The mean of 5 numbers is 32. If 4 of them are 18, 17, 39, 31, what is the missing number?

    Answer: 55

Friday 12 December 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.021 in standard form

    Answer: 2.1 × 10-2
  2. 2. Algebra

    Factorise: x² + 5x - 84

    Answer: (x + 12)(x - 7)
  3. 3. Geometry

    Adjacent = 23cm, angle = 33°. Find opposite. Give your answer to 2 decimal places

    Answer: 14.94cm
  4. 4. Ratio

    In ratio 11:9:1, what fraction is the second part?

    Answer: 3⁄7
  5. 5. Statistics

    The mean of 4 numbers is 36. If 3 of them are 16, 47, 48, what is the missing number?

    Answer: 33