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Lintel Dec 28 - Jan 3 25 questions
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Monday 28 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 200,000 in standard form

    Answer: 2 × 105
  2. 2. Algebra

    Factorise: x² + 4x + 3

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

    Adjacent = 15cm, angle = 41°. Find opposite. Give your answer to 2 decimal places

    Answer: 13.04cm
  4. 4. Ratio

    £210.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £70.00
  5. 5. Statistics

    Calculate the mean of: 22, 48, 17, 50, 32, 22. Give your answer to 2 decimal places

    Answer: 31.83

Tuesday 29 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0064 in standard form

    Answer: 6.4 × 10-3
  2. 2. Algebra

    Factorise: x² - 3x - 28

    Answer: (x + 4)(x - 7)
  3. 3. Geometry

    Hypotenuse = 21cm, angle = 52°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 12.93cm
  4. 4. Ratio

    £185.00 is shared between A and B in the ratio 3:2. How much does A receive?

    Answer: £111.00
  5. 5. Statistics

    The mean of 4 numbers is 25. If 3 of them are 32, 21, 27, what is the missing number?

    Answer: 20

Wednesday 30 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.057 in standard form

    Answer: 5.7 × 10-2
  2. 2. Algebra

    Factorise: x² + 8x - 20

    Answer: (x + 10)(x - 2)
  3. 3. Geometry

    Adjacent = 18cm, angle = 57°. Find opposite. Give your answer to 2 decimal places

    Answer: 27.72cm
  4. 4. Ratio

    Orange, purple and pink counters are in the ratio 10:6:12. What fraction of the counters are pink?

    Answer: 3⁄7
  5. 5. Statistics

    The mean of 6 numbers is 39. If 5 of them are 36, 50, 38, 47, 28, what is the missing number?

    Answer: 35

Thursday 31 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 49,000,000 in standard form

    Answer: 4.9 × 107
  2. 2. Algebra

    Factorise: x² + 19x + 90

    Answer: (x + 10)(x + 9)
  3. 3. Geometry

    Hypotenuse = 29cm, angle = 44°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 20.86cm
  4. 4. Ratio

    Simplify the ratio £5 : 90p

    Answer: 50:9
  5. 5. Statistics

    Calculate the mean of: 32, 21, 45, 18, 26, 33. Give your answer to 2 decimal places

    Answer: 29.17

Friday 1 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 68,000 in standard form

    Answer: 6.8 × 104
  2. 2. Algebra

    Factorise: x² - x - 12

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

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

    Answer: 13.49cm
  4. 4. Ratio

    Divide 152 in the ratio 3:2:3

    Answer: 57, 38 and 57
  5. 5. Statistics

    Calculate the mean of: 18, 18, 11, 43, 7, 35

    Answer: 22