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Lintel Jun 7 - 13 25 questions
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Monday 7 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0038 in standard form

    Answer: 3.8 × 10-3
  2. 2. Algebra

    Factorise: x² - 9x - 22

    Answer: (x + 2)(x - 11)
  3. 3. Geometry

    Hypotenuse = 29cm, angle = 33°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 24.32cm
  4. 4. Ratio

    Red, blue and green beads are in the ratio 5:7:5. What fraction of the beads are green?

    Answer: 5⁄17
  5. 5. Statistics

    The mean of 4 numbers is 38. If 3 of them are 39, 50, 37, what is the missing number?

    Answer: 26

Tuesday 8 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.062 in standard form

    Answer: 6.2 × 10-2
  2. 2. Algebra

    Factorise: x² - 12x + 35

    Answer: (x - 5)(x - 7)
  3. 3. Geometry

    Hypotenuse = 27cm, angle = 59°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.91cm
  4. 4. Ratio

    £161.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £115.00
  5. 5. Statistics

    The mean of 4 numbers is 34. If 3 of them are 30, 20, 19, what is the missing number?

    Answer: 67

Wednesday 9 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 460,000,000 in standard form

    Answer: 4.6 × 108
  2. 2. Algebra

    Factorise: x² + 7x - 8

    Answer: (x + 8)(x - 1)
  3. 3. Geometry

    Adjacent = 30cm, angle = 35°. Find opposite. Give your answer to 2 decimal places

    Answer: 21.01cm
  4. 4. Ratio

    Simplify the ratio 2 litres : 900 ml

    Answer: 20:9
  5. 5. Statistics

    Calculate the mean of: 7, 27, 50, 17, 22, 9

    Answer: 22

Thursday 10 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 810,000,000 in standard form

    Answer: 8.1 × 108
  2. 2. Algebra

    Factorise: x² + 4x - 60

    Answer: (x + 10)(x - 6)
  3. 3. Geometry

    Hypotenuse = 33cm, angle = 49°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 21.65cm
  4. 4. Ratio

    Simplify the ratio £2 : 95p

    Answer: 40:19
  5. 5. Statistics

    Calculate the mean of: 40, 42, 41, 35, 41, 5, 49, 23

    Answer: 34.5

Friday 11 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.006 in standard form

    Answer: 6 × 10-3
  2. 2. Algebra

    Factorise: x² + 9x - 36

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

    Adjacent = 24cm, angle = 54°. Find opposite. Give your answer to 2 decimal places

    Answer: 33.03cm
  4. 4. Ratio

    £217.00 is shared between A and B in the ratio 3:4. How much does A receive?

    Answer: £93.00
  5. 5. Statistics

    The mean of 5 numbers is 34. If 4 of them are 28, 15, 41, 42, what is the missing number?

    Answer: 44