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Lintel Aug 25 - 31 25 questions
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Monday 25 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 13,000 in standard form

    Answer: 1.3 × 104
  2. 2. Algebra

    Factorise: x² + 11x - 12

    Answer: (x + 12)(x - 1)
  3. 3. Geometry

    Adjacent = 18cm, angle = 33°. Find opposite. Give your answer to 2 decimal places

    Answer: 11.69cm
  4. 4. Ratio

    Orange, purple and pink marbles are in the ratio 1:6:7. What fraction of the marbles are orange?

    Answer: 1⁄14
  5. 5. Statistics

    Calculate the mean of: 39, 44, 24, 9, 27, 25

    Answer: 28

Tuesday 26 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00095 in standard form

    Answer: 9.5 × 10-4
  2. 2. Algebra

    Factorise: x² + 5x - 6

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

    Hypotenuse = 19cm, angle = 25°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 17.22cm
  4. 4. Ratio

    Simplify the ratio 2kg : 400g

    Answer: 5:1
  5. 5. Statistics

    Calculate the mean of: 25, 13, 34, 31, 22, 7

    Answer: 22

Wednesday 27 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 2,700,000 in standard form

    Answer: 2.7 × 106
  2. 2. Algebra

    Factorise: x² - 20x + 96

    Answer: (x - 8)(x - 12)
  3. 3. Geometry

    Adjacent = 21cm, angle = 37°. Find opposite. Give your answer to 2 decimal places

    Answer: 15.82cm
  4. 4. Ratio

    £168.00 is shared between A and B in the ratio 5:3. How much does A receive?

    Answer: £105.00
  5. 5. Statistics

    The mean of 4 numbers is 32. If 3 of them are 17, 32, 42, what is the missing number?

    Answer: 37

Thursday 28 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 5,400,000 in standard form

    Answer: 5.4 × 106
  2. 2. Algebra

    Factorise: x² + x - 2

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

    Adjacent = 15cm, angle = 47°. Find opposite. Give your answer to 2 decimal places

    Answer: 16.09cm
  4. 4. Ratio

    Simplify the ratio 2 hours : 15 minutes

    Answer: 8:1
  5. 5. Statistics

    The mean of 6 numbers is 26. If 5 of them are 32, 21, 31, 42, 17, what is the missing number?

    Answer: 13

Friday 29 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000024 in standard form

    Answer: 2.4 × 10-5
  2. 2. Algebra

    Factorise: x² + x - 6

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

    Hypotenuse = 17cm, angle = 42°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 12.63cm
  4. 4. Ratio

    £387.00 is shared between A and B in the ratio 4:5. How much does A receive?

    Answer: £172.00
  5. 5. Statistics

    Calculate the mean of: 30, 5, 36, 21, 33, 19, 30, 19. Give your answer to 2 decimal places

    Answer: 24.13