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Lintel Jul 7 - 13 25 questions
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Monday 7 July 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 + 4x - 12

    Answer: (x + 6)(x - 2)
  3. 3. Geometry

    Adjacent = 23cm, angle = 41°. Find opposite. Give your answer to 2 decimal places

    Answer: 19.99cm
  4. 4. Ratio

    £217.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £155.00
  5. 5. Statistics

    Calculate the mean of: 10, 16, 8, 27, 14, 48

    Answer: 20.5

Tuesday 8 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 280,000 in standard form

    Answer: 2.8 × 105
  2. 2. Algebra

    Factorise: x² - 13x + 30

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

    Adjacent = 24cm, angle = 38°. Find opposite. Give your answer to 2 decimal places

    Answer: 18.75cm
  4. 4. Ratio

    Simplify the ratio 3 litres : 600 ml

    Answer: 5:1
  5. 5. Statistics

    Calculate the mean of: 31, 25, 46, 45, 48, 47, 7, 42. Give your answer to 2 decimal places

    Answer: 36.38

Wednesday 9 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0024 in standard form

    Answer: 2.4 × 10-3
  2. 2. Algebra

    Factorise: x² + 8x - 9

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

    Hypotenuse = 27cm, angle = 58°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.31cm
  4. 4. Ratio

    Simplify the ratio £5 : 20p

    Answer: 25:1
  5. 5. Statistics

    The mean of 5 numbers is 36. If 4 of them are 44, 22, 34, 21, what is the missing number?

    Answer: 59

Thursday 10 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00085 in standard form

    Answer: 8.5 × 10-4
  2. 2. Algebra

    Factorise: x² + 4x - 5

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

    Adjacent = 22cm, angle = 50°. Find opposite. Give your answer to 2 decimal places

    Answer: 26.22cm
  4. 4. Ratio

    Orange, purple and pink counters are in the ratio 2:8:12. What fraction of the counters are pink?

    Answer: 6⁄11
  5. 5. Statistics

    The mean of 6 numbers is 37. If 5 of them are 36, 49, 39, 19, 44, what is the missing number?

    Answer: 35

Friday 11 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 280,000,000 in standard form

    Answer: 2.8 × 108
  2. 2. Algebra

    Factorise: x² - 9x + 14

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

    Hypotenuse = 38cm, angle = 60°. Find adjacent side

    Answer: 19cm
  4. 4. Ratio

    Simplify the ratio 2m : 90cm

    Answer: 20:9
  5. 5. Statistics

    Calculate the mean of: 44, 25, 16, 40, 6, 37, 37. Give your answer to 2 decimal places

    Answer: 29.29