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Lintel Jul 23 - 29 25 questions
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Monday 23 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.036 in standard form

    Answer: 3.6 × 10-2
  2. 2. Algebra

    Factorise: x² + 2x - 63

    Answer: (x + 9)(x - 7)
  3. 3. Geometry

    Hypotenuse = 35cm, angle = 29°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 30.61cm
  4. 4. Ratio

    Divide 90 in the ratio 4:3:2

    Answer: 40, 30 and 20
  5. 5. Statistics

    Calculate the mean of: 43, 43, 30, 8, 35, 24, 44, 21

    Answer: 31

Tuesday 24 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0068 in standard form

    Answer: 6.8 × 10-3
  2. 2. Algebra

    Factorise: x² - 4x - 32

    Answer: (x + 4)(x - 8)
  3. 3. Geometry

    Hypotenuse = 23cm, angle = 30°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 19.92cm
  4. 4. Ratio

    In ratio 6:7:6, what fraction is the third part?

    Answer: 6⁄19
  5. 5. Statistics

    The mean of 4 numbers is 25. If 3 of them are 25, 22, 26, what is the missing number?

    Answer: 27

Wednesday 25 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 89,000 in standard form

    Answer: 8.9 × 104
  2. 2. Algebra

    Factorise: x² + 8x - 33

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

    Adjacent = 22cm, angle = 56°. Find opposite. Give your answer to 2 decimal places

    Answer: 32.62cm
  4. 4. Ratio

    £273.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £156.00
  5. 5. Statistics

    Calculate the mean of: 15, 48, 16, 23, 25, 44, 39, 42

    Answer: 31.5

Thursday 26 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00022 in standard form

    Answer: 2.2 × 10-4
  2. 2. Algebra

    Factorise: x² - 3x - 108

    Answer: (x + 9)(x - 12)
  3. 3. Geometry

    Hypotenuse = 30cm, angle = 61°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.54cm
  4. 4. Ratio

    In ratio 10:6:8, what fraction is the first part?

    Answer: 5⁄12
  5. 5. Statistics

    Calculate the mean of: 33, 19, 34, 44, 50, 38, 29. Give your answer to 2 decimal places

    Answer: 35.29

Friday 27 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 6,700,000 in standard form

    Answer: 6.7 × 106
  2. 2. Algebra

    Factorise: x² + 8x - 20

    Answer: (x + 10)(x - 2)
  3. 3. Geometry

    Adjacent = 25cm, angle = 56°. Find opposite. Give your answer to 2 decimal places

    Answer: 37.06cm
  4. 4. Ratio

    £196.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £112.00
  5. 5. Statistics

    The mean of 5 numbers is 38. If 4 of them are 33, 22, 36, 32, what is the missing number?

    Answer: 67