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Lintel May 16 - 22 25 questions
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Monday 16 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 430,000,000 in standard form

    Answer: 4.3 × 108
  2. 2. Algebra

    Factorise: x² + 3x - 10

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

    Hypotenuse = 21cm, angle = 44°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 15.11cm
  4. 4. Ratio

    In ratio 2:6:2, what fraction is the second part?

    Answer: 3⁄5
  5. 5. Statistics

    Calculate the mean of: 45, 24, 22, 12, 7, 9, 10, 13

    Answer: 17.75

Tuesday 17 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0079 in standard form

    Answer: 7.9 × 10-3
  2. 2. Algebra

    Factorise: x² + 5x - 14

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

    Adjacent = 22cm, angle = 45°. Find opposite

    Answer: 22cm
  4. 4. Ratio

    Orange, purple and pink beads are in the ratio 12:3:5. What fraction of the beads are orange?

    Answer: 3⁄5
  5. 5. Statistics

    The mean of 4 numbers is 30. If 3 of them are 36, 48, 25, what is the missing number?

    Answer: 11

Wednesday 18 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000047 in standard form

    Answer: 4.7 × 10-5
  2. 2. Algebra

    Factorise: x² + 14x + 48

    Answer: (x + 8)(x + 6)
  3. 3. Geometry

    Adjacent = 10cm, angle = 50°. Find opposite. Give your answer to 2 decimal places

    Answer: 11.92cm
  4. 4. Ratio

    Simplify the ratio £1 : 70p

    Answer: 10:7
  5. 5. Statistics

    The mean of 4 numbers is 29. If 3 of them are 34, 46, 19, what is the missing number?

    Answer: 17

Thursday 19 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 770,000 in standard form

    Answer: 7.7 × 105
  2. 2. Algebra

    Factorise: x² + 3x - 70

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

    Hypotenuse = 31cm, angle = 52°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 19.09cm
  4. 4. Ratio

    In ratio 12:8:6, what fraction is the first part?

    Answer: 6⁄13
  5. 5. Statistics

    Calculate the mean of: 12, 50, 12, 7, 44, 33. Give your answer to 2 decimal places

    Answer: 26.33

Friday 20 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.058 in standard form

    Answer: 5.8 × 10-2
  2. 2. Algebra

    Factorise: x² - x - 20

    Answer: (x + 4)(x - 5)
  3. 3. Geometry

    Adjacent = 30cm, angle = 59°. Find opposite. Give your answer to 2 decimal places

    Answer: 49.93cm
  4. 4. Ratio

    £252.00 is shared between A and B in the ratio 4:5. How much does A receive?

    Answer: £112.00
  5. 5. Statistics

    The mean of 4 numbers is 39. If 3 of them are 25, 47, 49, what is the missing number?

    Answer: 35