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Lintel Jun 28 - Jul 4 25 questions
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Monday 28 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 64,000 in standard form

    Answer: 6.4 × 104
  2. 2. Algebra

    Factorise: x² + 13x + 36

    Answer: (x + 9)(x + 4)
  3. 3. Geometry

    Hypotenuse = 39cm, angle = 33°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 32.71cm
  4. 4. Ratio

    £130.00 is shared between A and B in the ratio 2:3. How much does A receive?

    Answer: £52.00
  5. 5. Statistics

    Calculate the mean of: 23, 12, 14, 39, 6, 23

    Answer: 19.5

Tuesday 29 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000064 in standard form

    Answer: 6.4 × 10-5
  2. 2. Algebra

    Factorise: x² + 6x - 16

    Answer: (x + 8)(x - 2)
  3. 3. Geometry

    Adjacent = 30cm, angle = 34°. Find opposite. Give your answer to 2 decimal places

    Answer: 20.24cm
  4. 4. Ratio

    £259.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £185.00
  5. 5. Statistics

    The mean of 6 numbers is 32. If 5 of them are 38, 28, 40, 48, 31, what is the missing number?

    Answer: 7

Wednesday 30 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0097 in standard form

    Answer: 9.7 × 10-3
  2. 2. Algebra

    Factorise: x² - 4x - 45

    Answer: (x + 5)(x - 9)
  3. 3. Geometry

    Hypotenuse = 26cm, angle = 62°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio

    Simplify the ratio 4 hours : 50 minutes

    Answer: 24:5
  5. 5. Statistics

    The mean of 5 numbers is 38. If 4 of them are 19, 19, 47, 40, what is the missing number?

    Answer: 65

Thursday 1 July 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 230,000,000 in standard form

    Answer: 2.3 × 108
  2. 2. Algebra

    Factorise: x² + 2x - 24

    Answer: (x + 6)(x - 4)
  3. 3. Geometry

    Adjacent = 10cm, angle = 41°. Find opposite. Give your answer to 2 decimal places

    Answer: 8.69cm
  4. 4. Ratio

    £203.00 is shared between A and B in the ratio 3:4. How much does A receive?

    Answer: £87.00
  5. 5. Statistics

    The mean of 6 numbers is 31. If 5 of them are 32, 17, 36, 46, 40, what is the missing number?

    Answer: 15

Friday 2 July 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.013 in standard form

    Answer: 1.3 × 10-2
  2. 2. Algebra

    Factorise: x² - 8x - 9

    Answer: (x + 1)(x - 9)
  3. 3. Geometry

    Hypotenuse = 31cm, angle = 49°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 20.34cm
  4. 4. Ratio

    Orange, purple and pink sweets are in the ratio 1:2:8. What fraction of the sweets are pink?

    Answer: 8⁄11
  5. 5. Statistics

    The mean of 4 numbers is 32. If 3 of them are 34, 24, 48, what is the missing number?

    Answer: 22