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Lintel May 10 - 16 25 questions
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Monday 10 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 790,000,000 in standard form

    Answer: 7.9 × 108
  2. 2. Algebra

    Factorise: x² - x - 12

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

    Adjacent = 20cm, angle = 52°. Find opposite. Give your answer to 2 decimal places

    Answer: 25.6cm
  4. 4. Ratio

    Divide 168 in the ratio 1:2:3

    Answer: 28, 56 and 84
  5. 5. Statistics

    Calculate the mean of: 40, 18, 44, 15, 18, 8, 48. Give your answer to 2 decimal places

    Answer: 27.29

Tuesday 11 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0017 in standard form

    Answer: 1.7 × 10-3
  2. 2. Algebra

    Factorise: x² + x - 12

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

    Hypotenuse = 18cm, angle = 41°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.58cm
  4. 4. Ratio

    Divide 308 in the ratio 4:3:4

    Answer: 112, 84 and 112
  5. 5. Statistics

    The mean of 6 numbers is 34. If 5 of them are 45, 19, 22, 20, 32, what is the missing number?

    Answer: 66

Wednesday 12 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 300,000 in standard form

    Answer: 3 × 105
  2. 2. Algebra

    Factorise: x² - 5x - 6

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

    Adjacent = 16cm, angle = 60°. Find opposite. Give your answer to 2 decimal places

    Answer: 27.71cm
  4. 4. Ratio

    Express the second part of 8:12 as a fraction in simplest form

    Answer: 3⁄5
  5. 5. Statistics

    The mean of 6 numbers is 27. If 5 of them are 22, 17, 27, 50, 15, what is the missing number?

    Answer: 31

Thursday 13 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0038 in standard form

    Answer: 3.8 × 10-3
  2. 2. Algebra

    Factorise: x² + 5x - 14

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

    Hypotenuse = 17cm, angle = 51°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 10.7cm
  4. 4. Ratio

    Divide 96 in the ratio 4:1:1

    Answer: 64, 16 and 16
  5. 5. Statistics

    Calculate the mean of: 43, 7, 39, 20, 38, 24, 35, 23. Give your answer to 2 decimal places

    Answer: 28.63

Friday 14 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.025 in standard form

    Answer: 2.5 × 10-2
  2. 2. Algebra

    Factorise: x² + 3x - 70

    Answer: (x + 10)(x - 7)
  3. 3. Geometry

    Hypotenuse = 20cm, angle = 64°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 8.77cm
  4. 4. Ratio

    £252.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £84.00
  5. 5. Statistics

    The mean of 4 numbers is 35. If 3 of them are 37, 16, 40, what is the missing number?

    Answer: 47