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Lintel Mar 19 - 25 25 questions
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Monday 19 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 860,000 in standard form

    Answer: 8.6 × 105
  2. 2. Algebra

    Factorise: x² + 21x + 110

    Answer: (x + 11)(x + 10)
  3. 3. Geometry

    Adjacent = 11cm, angle = 59°. Find opposite. Give your answer to 2 decimal places

    Answer: 18.31cm
  4. 4. Ratio

    Simplify the ratio 1 litre : 300 ml

    Answer: 10:3
  5. 5. Statistics

    Calculate the mean of: 18, 33, 23, 29, 16, 24, 35. Give your answer to 2 decimal places

    Answer: 25.43

Tuesday 20 March 2012

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 + 7x - 8

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

    Hypotenuse = 24cm, angle = 47°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 16.37cm
  4. 4. Ratio

    £220.00 is shared between A and B in the ratio 2:3. How much does A receive?

    Answer: £88.00
  5. 5. Statistics

    The mean of 4 numbers is 31. If 3 of them are 45, 21, 16, what is the missing number?

    Answer: 42

Wednesday 21 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 2,200,000 in standard form

    Answer: 2.2 × 106
  2. 2. Algebra

    Factorise: x² - 5x - 24

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

    Adjacent = 24cm, angle = 52°. Find opposite. Give your answer to 2 decimal places

    Answer: 30.72cm
  4. 4. Ratio

    In ratio 11:4:10, what fraction is the first part?

    Answer: 11⁄25
  5. 5. Statistics

    Calculate the mean of: 12, 30, 35, 18, 32, 11

    Answer: 23

Thursday 22 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000019 in standard form

    Answer: 1.9 × 10-5
  2. 2. Algebra

    Factorise: x² + 5x - 14

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

    Hypotenuse = 25cm, angle = 52°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 15.39cm
  4. 4. Ratio

    Orange, purple and pink sweets are in the ratio 3:10:1. What fraction of the sweets are purple?

    Answer: 5⁄7
  5. 5. Statistics

    Calculate the mean of: 38, 20, 5, 10, 38, 38, 17. Give your answer to 2 decimal places

    Answer: 23.71

Friday 23 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 26,000 in standard form

    Answer: 2.6 × 104
  2. 2. Algebra

    Factorise: x² + 11x + 18

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

    Adjacent = 18cm, angle = 44°. Find opposite. Give your answer to 2 decimal places

    Answer: 17.38cm
  4. 4. Ratio

    In ratio 4:11:6, what fraction is the first part?

    Answer: 4⁄21
  5. 5. Statistics

    The mean of 6 numbers is 29. If 5 of them are 18, 28, 20, 30, 29, what is the missing number?

    Answer: 49