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Lintel Oct 31 - Nov 6 25 questions
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Monday 31 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00014 in standard form

    Answer: 1.4 × 10-4
  2. 2. Algebra

    Factorise: x² - 5x + 6

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

    Hypotenuse = 24cm, angle = 45°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 16.97cm
  4. 4. Ratio

    Red and blue sweets are in the ratio 13:15. What fraction of the sweets are blue?

    Answer: 15⁄28
  5. 5. Statistics

    The mean of 6 numbers is 28. If 5 of them are 46, 18, 22, 39, 32, what is the missing number?

    Answer: 11

Tuesday 1 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0083 in standard form

    Answer: 8.3 × 10-3
  2. 2. Algebra

    Factorise: x² - 5x + 4

    Answer: (x - 1)(x - 4)
  3. 3. Geometry

    Hypotenuse = 36cm, angle = 38°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 28.37cm
  4. 4. Ratio

    Express the first part of 6:3 as a fraction in simplest form

    Answer: 2⁄3
  5. 5. Statistics

    Calculate the mean of: 34, 26, 16, 33, 18, 18, 18, 40. Give your answer to 2 decimal places

    Answer: 25.38

Wednesday 2 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 950,000 in standard form

    Answer: 9.5 × 105
  2. 2. Algebra

    Factorise: x² - 16x + 64

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

    Adjacent = 15cm, angle = 45°. Find opposite

    Answer: 15cm
  4. 4. Ratio

    Simplify: 18:9:6

    Answer: 6:3:2
  5. 5. Statistics

    Calculate the mean of: 23, 10, 23, 29, 9, 14

    Answer: 18

Thursday 3 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0086 in standard form

    Answer: 8.6 × 10-3
  2. 2. Algebra

    Factorise: x² + 5x - 6

    Answer: (x + 6)(x - 1)
  3. 3. Geometry

    Hypotenuse = 27cm, angle = 30°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 23.38cm
  4. 4. Ratio

    Divide 144 in the ratio 3:3:2

    Answer: 54, 54 and 36
  5. 5. Statistics

    The mean of 6 numbers is 35. If 5 of them are 21, 50, 23, 49, 46, what is the missing number?

    Answer: 21

Friday 4 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0067 in standard form

    Answer: 6.7 × 10-3
  2. 2. Algebra

    Factorise: x² + 2x - 8

    Answer: (x + 4)(x - 2)
  3. 3. Geometry

    Hypotenuse = 20cm, angle = 55°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 11.47cm
  4. 4. Ratio

    £132.00 is shared between A and B in the ratio 2:1. How much does A receive?

    Answer: £88.00
  5. 5. Statistics

    Calculate the mean of: 45, 13, 29, 24, 9, 22, 10. Give your answer to 2 decimal places

    Answer: 21.71