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Lintel Feb 20 - 26 25 questions
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Monday 20 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0015 in standard form

    Answer: 1.5 × 10-3
  2. 2. Algebra

    Factorise: x² + x - 20

    Answer: (x + 5)(x - 4)
  3. 3. Geometry

    Hypotenuse = 22cm, angle = 52°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.54cm
  4. 4. Ratio

    Simplify: 12:10:10

    Answer: 6:5:5
  5. 5. Statistics

    The mean of 5 numbers is 35. If 4 of them are 23, 49, 41, 45, what is the missing number?

    Answer: 17

Tuesday 21 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 8,100,000 in standard form

    Answer: 8.1 × 106
  2. 2. Algebra

    Factorise: x² - 14x + 24

    Answer: (x - 2)(x - 12)
  3. 3. Geometry

    Adjacent = 10cm, angle = 46°. Find opposite. Give your answer to 2 decimal places

    Answer: 10.36cm
  4. 4. Ratio

    Divide 216 in the ratio 4:2:3

    Answer: 96, 48 and 72
  5. 5. Statistics

    Calculate the mean of: 35, 22, 39, 32, 39, 14, 40, 25

    Answer: 30.75

Wednesday 22 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.037 in standard form

    Answer: 3.7 × 10-2
  2. 2. Algebra

    Factorise: x² - 4x + 3

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

    Hypotenuse = 39cm, angle = 59°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 20.09cm
  4. 4. Ratio

    Simplify: 12:20:8

    Answer: 3:5:2
  5. 5. Statistics

    Calculate the mean of: 28, 14, 50, 27, 44, 17, 7. Give your answer to 2 decimal places

    Answer: 26.71

Thursday 23 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 520,000 in standard form

    Answer: 5.2 × 105
  2. 2. Algebra

    Factorise: x² + 3x - 28

    Answer: (x + 7)(x - 4)
  3. 3. Geometry

    Adjacent = 23cm, angle = 40°. Find opposite. Give your answer to 2 decimal places

    Answer: 19.3cm
  4. 4. Ratio

    Simplify: 12:12:20

    Answer: 3:3:5
  5. 5. Statistics

    The mean of 6 numbers is 40. If 5 of them are 34, 37, 35, 36, 29, what is the missing number?

    Answer: 69

Friday 24 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 340,000 in standard form

    Answer: 3.4 × 105
  2. 2. Algebra

    Factorise: x² + 7x - 18

    Answer: (x + 9)(x - 2)
  3. 3. Geometry

    Adjacent = 22cm, angle = 54°. Find opposite. Give your answer to 2 decimal places

    Answer: 30.28cm
  4. 4. Ratio

    £350.00 is shared between A and B in the ratio 2:5. How much does A receive?

    Answer: £100.00
  5. 5. Statistics

    Calculate the mean of: 31, 25, 48, 10, 15, 31, 45. Give your answer to 2 decimal places

    Answer: 29.29