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Lintel Aug 14 - 20 25 questions
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Monday 14 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 48,000 in standard form

    Answer: 4.8 × 104
  2. 2. Algebra

    Factorise: x² - 2x - 8

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

    Adjacent = 16cm, angle = 31°. Find opposite. Give your answer to 2 decimal places

    Answer: 9.61cm
  4. 4. Ratio

    Simplify the ratio 7m : 15cm

    Answer: 140:3
  5. 5. Statistics

    The mean of 4 numbers is 38. If 3 of them are 49, 27, 36, what is the missing number?

    Answer: 40

Tuesday 15 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.06 in standard form

    Answer: 6 × 10-2
  2. 2. Algebra

    Factorise: x² - 21x + 110

    Answer: (x - 10)(x - 11)
  3. 3. Geometry

    Hypotenuse = 30cm, angle = 65°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 12.68cm
  4. 4. Ratio

    £138.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £46.00
  5. 5. Statistics

    Calculate the mean of: 12, 8, 50, 18, 7, 36, 18, 10. Give your answer to 2 decimal places

    Answer: 19.88

Wednesday 16 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 92,000 in standard form

    Answer: 9.2 × 104
  2. 2. Algebra

    Factorise: x² - 9x + 8

    Answer: (x - 1)(x - 8)
  3. 3. Geometry

    Adjacent = 10cm, angle = 58°. Find opposite. Give your answer to 2 decimal places

    Answer: 16cm
  4. 4. Ratio

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

    Answer: £168.00
  5. 5. Statistics

    Calculate the mean of: 27, 29, 39, 48, 26, 32, 47. Give your answer to 2 decimal places

    Answer: 35.43

Thursday 17 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00028 in standard form

    Answer: 2.8 × 10-4
  2. 2. Algebra

    Factorise: x² - 3x - 70

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

    Hypotenuse = 40cm, angle = 41°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 30.19cm
  4. 4. Ratio

    Simplify the ratio kg : 150g

    Answer: 20:3
  5. 5. Statistics

    The mean of 6 numbers is 37. If 5 of them are 33, 23, 23, 30, 43, what is the missing number?

    Answer: 70

Friday 18 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0052 in standard form

    Answer: 5.2 × 10-3
  2. 2. Algebra

    Factorise: x² + x - 2

    Answer: (x + 2)(x - 1)
  3. 3. Geometry

    Hypotenuse = 22cm, angle = 59°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 11.33cm
  4. 4. Ratio

    £234.00 is shared between A and B in the ratio 2:1. How much does A receive?

    Answer: £156.00
  5. 5. Statistics

    The mean of 5 numbers is 34. If 4 of them are 42, 17, 40, 39, what is the missing number?

    Answer: 32