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Lintel Sep 22 - 28 25 questions
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Monday 22 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 750,000 in standard form

    Answer: 7.5 × 105
  2. 2. Algebra

    Factorise: x² - x - 20

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

    Adjacent = 11cm, angle = 58°. Find opposite. Give your answer to 2 decimal places

    Answer: 17.6cm
  4. 4. Ratio

    £189.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £135.00
  5. 5. Statistics

    The mean of 5 numbers is 37. If 4 of them are 47, 21, 22, 46, what is the missing number?

    Answer: 49

Tuesday 23 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0051 in standard form

    Answer: 5.1 × 10-3
  2. 2. Algebra

    Factorise: x² + 4x - 12

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

    Hypotenuse = 39cm, angle = 54°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 22.92cm
  4. 4. Ratio

    Simplify the ratio 2kg : 900g

    Answer: 20:9
  5. 5. Statistics

    Calculate the mean of: 15, 47, 10, 15, 22, 11

    Answer: 20

Wednesday 24 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0041 in standard form

    Answer: 4.1 × 10-3
  2. 2. Algebra

    Factorise: x² + 2x - 80

    Answer: (x + 10)(x - 8)
  3. 3. Geometry

    Hypotenuse = 36cm, angle = 59°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 18.54cm
  4. 4. Ratio

    Divide 232 in the ratio 1:4:3

    Answer: 29, 116 and 87
  5. 5. Statistics

    The mean of 4 numbers is 29. If 3 of them are 26, 21, 47, what is the missing number?

    Answer: 22

Thursday 25 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 98,000 in standard form

    Answer: 9.8 × 104
  2. 2. Algebra

    Factorise: x² + 3x - 108

    Answer: (x + 12)(x - 9)
  3. 3. Geometry

    Adjacent = 22cm, angle = 31°. Find opposite. Give your answer to 2 decimal places

    Answer: 13.22cm
  4. 4. Ratio

    Divide 44 in the ratio 2:1:1

    Answer: 22, 11 and 11
  5. 5. Statistics

    Calculate the mean of: 33, 28, 44, 45, 47, 9, 19, 12. Give your answer to 2 decimal places

    Answer: 29.63

Friday 26 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0028 in standard form

    Answer: 2.8 × 10-3
  2. 2. Algebra

    Factorise: x² + 9x + 8

    Answer: (x + 8)(x + 1)
  3. 3. Geometry

    Hypotenuse = 18cm, angle = 39°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.99cm
  4. 4. Ratio

    Black and white counters are in the ratio 6:10. What fraction of the counters are black?

    Answer: 3⁄8
  5. 5. Statistics

    Calculate the mean of: 6, 50, 34, 15, 20, 29, 14, 26

    Answer: 24.25