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Lintel Jul 22 - 28 25 questions
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Monday 22 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00072 in standard form

    Answer: 7.2 × 10-4
  2. 2. Algebra

    Factorise: x² + 11x + 30

    Answer: (x + 6)(x + 5)
  3. 3. Geometry

    Adjacent = 20cm, angle = 38°. Find opposite. Give your answer to 2 decimal places

    Answer: 15.63cm
  4. 4. Ratio

    Divide 66 in the ratio 1:1:4

    Answer: 11, 11 and 44
  5. 5. Statistics

    The mean of 4 numbers is 32. If 3 of them are 20, 38, 35, what is the missing number?

    Answer: 35

Tuesday 23 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 66,000 in standard form

    Answer: 6.6 × 104
  2. 2. Algebra

    Factorise: x² + 8x - 20

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

    Hypotenuse = 37cm, angle = 36°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 29.93cm
  4. 4. Ratio

    Express the first part of 15:10 as a fraction in simplest form

    Answer: 3⁄5
  5. 5. Statistics

    Calculate the mean of: 33, 19, 41, 29, 33, 16, 47, 50

    Answer: 33.5

Wednesday 24 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 7,400,000 in standard form

    Answer: 7.4 × 106
  2. 2. Algebra

    Factorise: x² - x - 90

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

    Hypotenuse = 30cm, angle = 58°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 15.9cm
  4. 4. Ratio

    £320.00 is shared between A and B in the ratio 5:3. How much does A receive?

    Answer: £200.00
  5. 5. Statistics

    The mean of 4 numbers is 27. If 3 of them are 41, 17, 26, what is the missing number?

    Answer: 24

Thursday 25 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00083 in standard form

    Answer: 8.3 × 10-4
  2. 2. Algebra

    Factorise: x² - 7x + 12

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

    Adjacent = 29cm, angle = 46°. Find opposite. Give your answer to 2 decimal places

    Answer: 30.03cm
  4. 4. Ratio

    Simplify the ratio 1 hour : 30 minutes

    Answer: 2:1
  5. 5. Statistics

    Calculate the mean of: 37, 28, 23, 49, 27, 44, 47, 9

    Answer: 33

Friday 26 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 960,000 in standard form

    Answer: 9.6 × 105
  2. 2. Algebra

    Factorise: x² - 4x - 60

    Answer: (x + 6)(x - 10)
  3. 3. Geometry

    Hypotenuse = 38cm, angle = 54°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 22.34cm
  4. 4. Ratio

    £140.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £80.00
  5. 5. Statistics

    Calculate the mean of: 37, 39, 47, 10, 5, 16, 27. Give your answer to 2 decimal places

    Answer: 25.86