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Lintel May 7 - 13 25 questions
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Monday 7 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00027 in standard form

    Answer: 2.7 × 10-4
  2. 2. Algebra

    Factorise: x² + x - 6

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

    Hypotenuse = 21cm, angle = 65°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 8.87cm
  4. 4. Ratio

    £150.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £50.00
  5. 5. Statistics

    Calculate the mean of: 9, 12, 8, 36, 6, 30, 26, 30. Give your answer to 2 decimal places

    Answer: 19.63

Tuesday 8 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.07 in standard form

    Answer: 7 × 10-2
  2. 2. Algebra

    Factorise: x² + 9x + 14

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

    Hypotenuse = 32cm, angle = 50°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 20.57cm
  4. 4. Ratio

    Simplify the ratio 5 hours : 20 minutes

    Answer: 15:1
  5. 5. Statistics

    Calculate the mean of: 45, 9, 13, 48, 9, 8, 48. Give your answer to 2 decimal places

    Answer: 25.71

Wednesday 9 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 9,400,000 in standard form

    Answer: 9.4 × 106
  2. 2. Algebra

    Factorise: x² + x - 12

    Answer: (x + 4)(x - 3)
  3. 3. Geometry

    Adjacent = 28cm, angle = 35°. Find opposite. Give your answer to 2 decimal places

    Answer: 19.61cm
  4. 4. Ratio

    £125.00 is shared between A and B in the ratio 2:3. How much does A receive?

    Answer: £50.00
  5. 5. Statistics

    The mean of 5 numbers is 35. If 4 of them are 50, 47, 21, 37, what is the missing number?

    Answer: 20

Thursday 10 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 4,500,000 in standard form

    Answer: 4.5 × 106
  2. 2. Algebra

    Factorise: x² - x - 56

    Answer: (x + 7)(x - 8)
  3. 3. Geometry

    Hypotenuse = 29cm, angle = 36°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 23.46cm
  4. 4. Ratio

    Orange, purple and pink beads are in the ratio 11:10:7. What fraction of the beads are pink?

    Answer: 1⁄4
  5. 5. Statistics

    The mean of 5 numbers is 24. If 4 of them are 18, 22, 44, 22, what is the missing number?

    Answer: 14

Friday 11 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.087 in standard form

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

    Factorise: x² - 8x + 7

    Answer: (x - 1)(x - 7)
  3. 3. Geometry

    Adjacent = 20cm, angle = 55°. Find opposite. Give your answer to 2 decimal places

    Answer: 28.56cm
  4. 4. Ratio

    In ratio 10:7:1, what fraction is the first part?

    Answer: 5⁄9
  5. 5. Statistics

    Calculate the mean of: 20, 11, 26, 19, 39, 33, 14. Give your answer to 2 decimal places

    Answer: 23.14