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Lintel Feb 24 - Mar 2 25 questions
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Monday 24 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0096 in standard form

    Answer: 9.6 × 10-3
  2. 2. Algebra

    Factorise: x² - 10x + 24

    Answer: (x - 4)(x - 6)
  3. 3. Geometry

    Adjacent = 21cm, angle = 36°. Find opposite. Give your answer to 2 decimal places

    Answer: 15.26cm
  4. 4. Ratio

    Orange, purple and pink beads are in the ratio 5:8:10. What fraction of the beads are purple?

    Answer: 8⁄23
  5. 5. Statistics

    Calculate the mean of: 28, 49, 31, 49, 36, 21, 9, 50. Give your answer to 2 decimal places

    Answer: 34.13

Tuesday 25 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 86,000 in standard form

    Answer: 8.6 × 104
  2. 2. Algebra

    Factorise: x² - x - 2

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

    Hypotenuse = 15cm, angle = 25°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.59cm
  4. 4. Ratio

    £170.00 is shared between A and B in the ratio 2:3. How much does A receive?

    Answer: £68.00
  5. 5. Statistics

    The mean of 4 numbers is 36. If 3 of them are 42, 24, 26, what is the missing number?

    Answer: 52

Wednesday 26 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0037 in standard form

    Answer: 3.7 × 10-3
  2. 2. Algebra

    Factorise: x² + 4x - 45

    Answer: (x + 9)(x - 5)
  3. 3. Geometry

    Adjacent = 12cm, angle = 37°. Find opposite. Give your answer to 2 decimal places

    Answer: 9.04cm
  4. 4. Ratio

    £240.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £80.00
  5. 5. Statistics

    The mean of 5 numbers is 25. If 4 of them are 19, 31, 20, 26, what is the missing number?

    Answer: 29

Thursday 27 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 970,000,000 in standard form

    Answer: 9.7 × 108
  2. 2. Algebra

    Factorise: x² - 4x - 12

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

    Hypotenuse = 15cm, angle = 32°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 12.72cm
  4. 4. Ratio

    Simplify the ratio 5 hours : 10 minutes

    Answer: 30:1
  5. 5. Statistics

    Calculate the mean of: 22, 6, 41, 9, 30, 28, 20, 9. Give your answer to 2 decimal places

    Answer: 20.63

Friday 28 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 73,000 in standard form

    Answer: 7.3 × 104
  2. 2. Algebra

    Factorise: x² - 5x - 6

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

    Hypotenuse = 25cm, angle = 57°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.62cm
  4. 4. Ratio

    £414.00 is shared between A and B in the ratio 4:5. How much does A receive?

    Answer: £184.00
  5. 5. Statistics

    Calculate the mean of: 38, 25, 30, 46, 24, 34, 5, 32

    Answer: 29.25