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Lintel Nov 24 - 30 25 questions
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Monday 24 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 700,000,000 in standard form

    Answer: 7 × 108
  2. 2. Algebra

    Factorise: x² - 8x + 12

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

    Adjacent = 20cm, angle = 34°. Find opposite. Give your answer to 2 decimal places

    Answer: 13.49cm
  4. 4. Ratio

    Divide 189 in the ratio 3:3:1

    Answer: 81, 81 and 27
  5. 5. Statistics

    Calculate the mean of: 21, 9, 34, 43, 19, 23, 24. Give your answer to 2 decimal places

    Answer: 24.71

Tuesday 25 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00047 in standard form

    Answer: 4.7 × 10-4
  2. 2. Algebra

    Factorise: x² + 3x - 10

    Answer: (x + 5)(x - 2)
  3. 3. Geometry

    Hypotenuse = 16cm, angle = 28°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.13cm
  4. 4. Ratio

    Divide 150 in the ratio 1:3:1

    Answer: 30, 90 and 30
  5. 5. Statistics

    The mean of 5 numbers is 31. If 4 of them are 46, 22, 31, 30, what is the missing number?

    Answer: 26

Wednesday 26 November 2014

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 - 5x - 14

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

    Adjacent = 22cm, angle = 34°. Find opposite. Give your answer to 2 decimal places

    Answer: 14.84cm
  4. 4. Ratio

    Divide 232 in the ratio 2:3:3

    Answer: 58, 87 and 87
  5. 5. Statistics

    The mean of 6 numbers is 33. If 5 of them are 29, 48, 16, 26, 23, what is the missing number?

    Answer: 56

Thursday 27 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00021 in standard form

    Answer: 2.1 × 10-4
  2. 2. Algebra

    Factorise: x² - 17x + 66

    Answer: (x - 6)(x - 11)
  3. 3. Geometry

    Hypotenuse = 27cm, angle = 35°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 22.12cm
  4. 4. Ratio

    Divide 147 in the ratio 2:4:1

    Answer: 42, 84 and 21
  5. 5. Statistics

    Calculate the mean of: 40, 38, 44, 21, 15, 20. Give your answer to 2 decimal places

    Answer: 29.67

Friday 28 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000063 in standard form

    Answer: 6.3 × 10-5
  2. 2. Algebra

    Factorise: x² + 15x + 44

    Answer: (x + 11)(x + 4)
  3. 3. Geometry

    Hypotenuse = 22cm, angle = 50°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.14cm
  4. 4. Ratio

    Orange and purple sweets are in the ratio 11:5. What fraction of the sweets are purple?

    Answer: 5⁄16
  5. 5. Statistics

    Calculate the mean of: 28, 32, 16, 12, 5, 50. Give your answer to 2 decimal places

    Answer: 23.83