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Lintel May 27 - Jun 2 25 questions
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Monday 27 May 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.065 in standard form

    Answer: 6.5 × 10-2
  2. 2. Algebra

    Factorise: x² + 3x - 70

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

    Hypotenuse = 40cm, angle = 47°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 27.28cm
  4. 4. Ratio

    In ratio 4:10:1, what fraction is the second part?

    Answer: 2⁄3
  5. 5. Statistics

    The mean of 6 numbers is 30. If 5 of them are 36, 19, 38, 17, 16, what is the missing number?

    Answer: 54

Tuesday 28 May 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00079 in standard form

    Answer: 7.9 × 10-4
  2. 2. Algebra

    Factorise: x² + 3x + 2

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

    Hypotenuse = 23cm, angle = 56°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 12.86cm
  4. 4. Ratio

    In ratio 12:2:8, what fraction is the first part?

    Answer: 6⁄11
  5. 5. Statistics

    The mean of 4 numbers is 24. If 3 of them are 50, 20, 15, what is the missing number?

    Answer: 11

Wednesday 29 May 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 93,000,000 in standard form

    Answer: 9.3 × 107
  2. 2. Algebra

    Factorise: x² - x - 12

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

    Adjacent = 28cm, angle = 44°. Find opposite. Give your answer to 2 decimal places

    Answer: 27.04cm
  4. 4. Ratio

    £243.00 is shared between A and B in the ratio 4:5. How much does A receive?

    Answer: £108.00
  5. 5. Statistics

    Calculate the mean of: 27, 34, 49, 29, 14, 15

    Answer: 28

Thursday 30 May 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 18,000,000 in standard form

    Answer: 1.8 × 107
  2. 2. Algebra

    Factorise: x² - x - 72

    Answer: (x + 8)(x - 9)
  3. 3. Geometry

    Hypotenuse = 20cm, angle = 61°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 9.7cm
  4. 4. Ratio

    In ratio 8:9:5, what fraction is the third part?

    Answer: 5⁄22
  5. 5. Statistics

    Calculate the mean of: 16, 23, 37, 40, 17, 5

    Answer: 23

Friday 31 May 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.086 in standard form

    Answer: 8.6 × 10-2
  2. 2. Algebra

    Factorise: x² + x - 72

    Answer: (x + 9)(x - 8)
  3. 3. Geometry

    Adjacent = 25cm, angle = 37°. Find opposite. Give your answer to 2 decimal places

    Answer: 18.84cm
  4. 4. Ratio

    Simplify the ratio 5kg : 500g

    Answer: 10:1
  5. 5. Statistics

    The mean of 5 numbers is 34. If 4 of them are 37, 50, 29, 36, what is the missing number?

    Answer: 18