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Lintel Mar 26 - Apr 1 25 questions
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Monday 26 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 66,000 in standard form

    Answer: 6.6 × 104
  2. 2. Algebra

    Factorise: x² + 6x - 16

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

    Adjacent = 11cm, angle = 52°. Find opposite. Give your answer to 2 decimal places

    Answer: 14.08cm
  4. 4. Ratio

    Divide 138 in the ratio 1:1:4

    Answer: 23, 23 and 92
  5. 5. Statistics

    The mean of 4 numbers is 40. If 3 of them are 27, 21, 45, what is the missing number?

    Answer: 67

Tuesday 27 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000023 in standard form

    Answer: 2.3 × 10-5
  2. 2. Algebra

    Factorise: x² + x - 12

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

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

    Answer: 33.26cm
  4. 4. Ratio

    Simplify: 15:18:6

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

    Calculate the mean of: 42, 29, 39, 24, 22, 38. Give your answer to 2 decimal places

    Answer: 32.33

Wednesday 28 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00062 in standard form

    Answer: 6.2 × 10-4
  2. 2. Algebra

    Factorise: x² + 17x + 70

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

    Hypotenuse = 33cm, angle = 25°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 29.91cm
  4. 4. Ratio

    Divide 203 in the ratio 3:3:1

    Answer: 87, 87 and 29
  5. 5. Statistics

    Calculate the mean of: 41, 38, 39, 9, 16, 8. Give your answer to 2 decimal places

    Answer: 25.17

Thursday 29 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 84,000 in standard form

    Answer: 8.4 × 104
  2. 2. Algebra

    Factorise: x² + 2x - 63

    Answer: (x + 9)(x - 7)
  3. 3. Geometry

    Adjacent = 18cm, angle = 60°. Find opposite. Give your answer to 2 decimal places

    Answer: 31.18cm
  4. 4. Ratio

    Divide 112 in the ratio 1:1:2

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

    The mean of 6 numbers is 33. If 5 of them are 18, 45, 47, 32, 35, what is the missing number?

    Answer: 21

Friday 30 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 5,200,000 in standard form

    Answer: 5.2 × 106
  2. 2. Algebra

    Factorise: x² + 4x - 12

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

    Hypotenuse = 30cm, angle = 56°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 16.78cm
  4. 4. Ratio

    Divide 70 in the ratio 1:3:1

    Answer: 14, 42 and 14
  5. 5. Statistics

    The mean of 5 numbers is 27. If 4 of them are 36, 16, 17, 46, what is the missing number?

    Answer: 20