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Lintel Apr 16 - 22 25 questions
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Monday 16 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.005 in standard form

    Answer: 5 × 10-3
  2. 2. Algebra

    Factorise: x² + 6x - 27

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

    Adjacent = 21cm, angle = 59°. Find opposite. Give your answer to 2 decimal places

    Answer: 34.95cm
  4. 4. Ratio

    Simplify the ratio 2m : 40cm

    Answer: 5:1
  5. 5. Statistics

    The mean of 4 numbers is 32. If 3 of them are 33, 43, 47, what is the missing number?

    Answer: 5

Tuesday 17 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 4,300,000 in standard form

    Answer: 4.3 × 106
  2. 2. Algebra

    Factorise: x² + 3x - 70

    Answer: (x + 10)(x - 7)
  3. 3. Geometry

    Hypotenuse = 30cm, angle = 58°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 15.9cm
  4. 4. Ratio

    £282.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £94.00
  5. 5. Statistics

    Calculate the mean of: 40, 7, 37, 5, 31, 27, 50. Give your answer to 2 decimal places

    Answer: 28.14

Wednesday 18 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 57,000,000 in standard form

    Answer: 5.7 × 107
  2. 2. Algebra

    Factorise: x² + 10x + 9

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

    Hypotenuse = 20cm, angle = 63°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 9.08cm
  4. 4. Ratio

    £245.00 is shared between A and B in the ratio 2:3. How much does A receive?

    Answer: £98.00
  5. 5. Statistics

    Calculate the mean of: 41, 44, 17, 13, 25, 35, 21, 41. Give your answer to 2 decimal places

    Answer: 29.63

Thursday 19 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0087 in standard form

    Answer: 8.7 × 10-3
  2. 2. Algebra

    Factorise: x² - x - 2

    Answer: (x + 1)(x - 2)
  3. 3. Geometry

    Adjacent = 11cm, angle = 40°. Find opposite. Give your answer to 2 decimal places

    Answer: 9.23cm
  4. 4. Ratio

    £192.00 is shared between A and B in the ratio 3:5. How much does A receive?

    Answer: £72.00
  5. 5. Statistics

    The mean of 6 numbers is 31. If 5 of them are 37, 17, 33, 34, 46, what is the missing number?

    Answer: 19

Friday 20 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 440,000 in standard form

    Answer: 4.4 × 105
  2. 2. Algebra

    Factorise: x² + 3x - 54

    Answer: (x + 9)(x - 6)
  3. 3. Geometry

    Hypotenuse = 33cm, angle = 37°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 26.35cm
  4. 4. Ratio

    Red, blue and green beads are in the ratio 8:4:7. What fraction of the beads are blue?

    Answer: 4⁄19
  5. 5. Statistics

    Calculate the mean of: 9, 16, 35, 42, 21, 31, 35

    Answer: 27