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Lintel Aug 15 - 21 25 questions
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Monday 15 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 9,700,000 in standard form

    Answer: 9.7 × 106
  2. 2. Algebra

    Factorise: x² - x - 72

    Answer: (x + 8)(x - 9)
  3. 3. Geometry

    Hypotenuse = 37cm, angle = 26°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 33.26cm
  4. 4. Ratio

    Simplify the ratio 5kg : 200g

    Answer: 25:1
  5. 5. Statistics

    Calculate the mean of: 18, 37, 34, 42, 17, 36, 39, 10. Give your answer to 2 decimal places

    Answer: 29.13

Tuesday 16 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00056 in standard form

    Answer: 5.6 × 10-4
  2. 2. Algebra

    Factorise: x² - 3x - 28

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

    Adjacent = 17cm, angle = 31°. Find opposite. Give your answer to 2 decimal places

    Answer: 10.21cm
  4. 4. Ratio

    Simplify the ratio 5kg : 100g

    Answer: 50:1
  5. 5. Statistics

    Calculate the mean of: 33, 38, 19, 14, 8, 34, 37. Give your answer to 2 decimal places

    Answer: 26.14

Wednesday 17 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 72,000,000 in standard form

    Answer: 7.2 × 107
  2. 2. Algebra

    Factorise: x² + x - 12

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

    Hypotenuse = 28cm, angle = 60°. Find adjacent side

    Answer: 14cm
  4. 4. Ratio

    Simplify the ratio 5m : 55cm

    Answer: 100:11
  5. 5. Statistics

    The mean of 5 numbers is 21. If 4 of them are 18, 18, 20, 29, what is the missing number?

    Answer: 20

Thursday 18 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 41,000,000 in standard form

    Answer: 4.1 × 107
  2. 2. Algebra

    Factorise: x² - 8x + 12

    Answer: (x - 2)(x - 6)
  3. 3. Geometry

    Hypotenuse = 36cm, angle = 49°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 23.62cm
  4. 4. Ratio

    Black, white and yellow counters are in the ratio 12:4:7. What fraction of the counters are yellow?

    Answer: 7⁄23
  5. 5. Statistics

    The mean of 5 numbers is 38. If 4 of them are 28, 45, 27, 48, what is the missing number?

    Answer: 42

Friday 19 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0039 in standard form

    Answer: 3.9 × 10-3
  2. 2. Algebra

    Factorise: x² + 7x - 18

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

    Adjacent = 14cm, angle = 54°. Find opposite. Give your answer to 2 decimal places

    Answer: 19.27cm
  4. 4. Ratio

    £243.00 is shared between A and B in the ratio 5:4. How much does A receive?

    Answer: £135.00
  5. 5. Statistics

    Calculate the mean of: 21, 19, 20, 23, 27, 20, 34. Give your answer to 2 decimal places

    Answer: 23.43