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Lintel Feb 25 - Mar 3 25 questions
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Monday 25 February 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 29,000 in standard form

    Answer: 2.9 × 104
  2. 2. Algebra

    Factorise: x² - 4x - 32

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

    Hypotenuse = 19cm, angle = 59°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 9.79cm
  4. 4. Ratio

    Orange, purple and pink counters are in the ratio 5:4:2. What fraction of the counters are pink?

    Answer: 2⁄11
  5. 5. Statistics

    The mean of 5 numbers is 35. If 4 of them are 46, 50, 25, 28, what is the missing number?

    Answer: 26

Tuesday 26 February 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.057 in standard form

    Answer: 5.7 × 10-2
  2. 2. Algebra

    Factorise: x² + 18x + 72

    Answer: (x + 12)(x + 6)
  3. 3. Geometry

    Adjacent = 17cm, angle = 43°. Find opposite. Give your answer to 2 decimal places

    Answer: 15.85cm
  4. 4. Ratio

    £235.00 is shared between A and B in the ratio 2:3. How much does A receive?

    Answer: £94.00
  5. 5. Statistics

    The mean of 5 numbers is 29. If 4 of them are 42, 30, 15, 21, what is the missing number?

    Answer: 37

Wednesday 27 February 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 290,000,000 in standard form

    Answer: 2.9 × 108
  2. 2. Algebra

    Factorise: x² - 4x - 60

    Answer: (x + 6)(x - 10)
  3. 3. Geometry

    Hypotenuse = 34cm, angle = 28°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 30.02cm
  4. 4. Ratio

    £198.00 is shared between A and B in the ratio 2:1. How much does A receive?

    Answer: £132.00
  5. 5. Statistics

    Calculate the mean of: 35, 46, 34, 38, 40, 29

    Answer: 37

Thursday 28 February 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 65,000,000 in standard form

    Answer: 6.5 × 107
  2. 2. Algebra

    Factorise: x² + 2x - 15

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

    Hypotenuse = 32cm, angle = 63°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.53cm
  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

    Calculate the mean of: 6, 21, 24, 30, 50, 50. Give your answer to 2 decimal places

    Answer: 30.17

Friday 1 March 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 500,000,000 in standard form

    Answer: 5 × 108
  2. 2. Algebra

    Factorise: x² + 6x - 16

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

    Adjacent = 19cm, angle = 60°. Find opposite. Give your answer to 2 decimal places

    Answer: 32.91cm
  4. 4. Ratio

    Simplify the ratio 1 litre : 200 ml

    Answer: 5:1
  5. 5. Statistics

    The mean of 5 numbers is 37. If 4 of them are 16, 40, 47, 27, what is the missing number?

    Answer: 55