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Lintel Feb 22 - 28 25 questions
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Monday 22 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 930,000,000 in standard form

    Answer: 9.3 × 108
  2. 2. Algebra

    Factorise: x² - 2x - 35

    Answer: (x + 5)(x - 7)
  3. 3. Geometry

    Adjacent = 22cm, angle = 57°. Find opposite. Give your answer to 2 decimal places

    Answer: 33.88cm
  4. 4. Ratio

    £222.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £74.00
  5. 5. Statistics

    The mean of 4 numbers is 30. If 3 of them are 30, 34, 24, what is the missing number?

    Answer: 32

Tuesday 23 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00091 in standard form

    Answer: 9.1 × 10-4
  2. 2. Algebra

    Factorise: x² + 4x - 32

    Answer: (x + 8)(x - 4)
  3. 3. Geometry

    Hypotenuse = 29cm, angle = 60°. Find adjacent side

    Answer: 14.5cm
  4. 4. Ratio

    £324.00 is shared between A and B in the ratio 4:5. How much does A receive?

    Answer: £144.00
  5. 5. Statistics

    Calculate the mean of: 7, 24, 44, 29, 32, 46. Give your answer to 2 decimal places

    Answer: 30.33

Wednesday 24 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000025 in standard form

    Answer: 2.5 × 10-5
  2. 2. Algebra

    Factorise: x² + 12x + 20

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

    Hypotenuse = 39cm, angle = 37°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 31.15cm
  4. 4. Ratio

    Orange and purple sweets are in the ratio 6:12. What fraction of the sweets are purple?

    Answer: 2⁄3
  5. 5. Statistics

    The mean of 5 numbers is 34. If 4 of them are 26, 46, 21, 21, what is the missing number?

    Answer: 56

Thursday 25 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 2,300,000 in standard form

    Answer: 2.3 × 106
  2. 2. Algebra

    Factorise: x² - x - 72

    Answer: (x + 8)(x - 9)
  3. 3. Geometry

    Adjacent = 18cm, angle = 53°. Find opposite. Give your answer to 2 decimal places

    Answer: 23.89cm
  4. 4. Ratio

    Orange and purple counters are in the ratio 2:5. What fraction of the counters are orange?

    Answer: 2⁄7
  5. 5. Statistics

    Calculate the mean of: 7, 47, 28, 30, 43, 19, 34, 12

    Answer: 27.5

Friday 26 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000084 in standard form

    Answer: 8.4 × 10-5
  2. 2. Algebra

    Factorise: x² - 6x - 16

    Answer: (x + 2)(x - 8)
  3. 3. Geometry

    Hypotenuse = 24cm, angle = 30°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 20.78cm
  4. 4. Ratio

    Divide 84 in the ratio 1:2:4

    Answer: 12, 24 and 48
  5. 5. Statistics

    Calculate the mean of: 44, 19, 14, 26, 11, 8, 29. Give your answer to 2 decimal places

    Answer: 21.57