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Lintel Jan 13 - 19 25 questions
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Monday 13 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00068 in standard form

    Answer: 6.8 × 10-4
  2. 2. Algebra

    Factorise: x² + 5x - 14

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

    Hypotenuse = 32cm, angle = 30°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 27.71cm
  4. 4. Ratio

    Divide 176 in the ratio 4:3:4

    Answer: 64, 48 and 64
  5. 5. Statistics

    Calculate the mean of: 5, 6, 8, 29, 18, 25, 34. Give your answer to 2 decimal places

    Answer: 17.86

Tuesday 14 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0068 in standard form

    Answer: 6.8 × 10-3
  2. 2. Algebra

    Factorise: x² + 3x - 40

    Answer: (x + 8)(x - 5)
  3. 3. Geometry

    Hypotenuse = 17cm, angle = 36°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.75cm
  4. 4. Ratio

    Simplify the ratio £7 : 20p

    Answer: 35:1
  5. 5. Statistics

    The mean of 4 numbers is 35. If 3 of them are 16, 46, 35, what is the missing number?

    Answer: 43

Wednesday 15 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 290,000 in standard form

    Answer: 2.9 × 105
  2. 2. Algebra

    Factorise: x² - 7x - 18

    Answer: (x + 2)(x - 9)
  3. 3. Geometry

    Adjacent = 16cm, angle = 40°. Find opposite. Give your answer to 2 decimal places

    Answer: 13.43cm
  4. 4. Ratio

    Simplify the ratio 4 hours : 35 minutes

    Answer: 48:7
  5. 5. Statistics

    Calculate the mean of: 13, 7, 9, 39, 29, 41

    Answer: 23

Thursday 16 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0091 in standard form

    Answer: 9.1 × 10-3
  2. 2. Algebra

    Factorise: x² - 16x + 55

    Answer: (x - 5)(x - 11)
  3. 3. Geometry

    Hypotenuse = 31cm, angle = 42°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 23.04cm
  4. 4. Ratio

    £296.00 is shared between A and B in the ratio 3:5. How much does A receive?

    Answer: £111.00
  5. 5. Statistics

    Calculate the mean of: 26, 10, 17, 19, 47, 21, 33. Give your answer to 2 decimal places

    Answer: 24.71

Friday 17 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 4,700,000 in standard form

    Answer: 4.7 × 106
  2. 2. Algebra

    Factorise: x² - 3x - 10

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

    Adjacent = 10cm, angle = 39°. Find opposite. Give your answer to 2 decimal places

    Answer: 8.cm
  4. 4. Ratio

    Simplify the ratio 3 litres : 500 ml

    Answer: 6:1
  5. 5. Statistics

    The mean of 5 numbers is 35. If 4 of them are 16, 47, 29, 31, what is the missing number?

    Answer: 52