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Lintel Oct 8 - 14 25 questions
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Monday 8 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    390000

    Answer: 3.9 × 105
  2. 2. Algebra

    Factorise: x² + x - 56

    Answer: (x + 8)(x - 7)
  3. 3. Geometry

    Hypotenuse = 38cm, angle = 60°. Find adjacent side

    Answer: 19cm
  4. 4. Ratio

    Express the first part of 6:3 as a fraction in simplest form

    Answer: 2⁄3
  5. 5. Statistics

    Calculate the mean of: 34, 27, 48, 33, 21, 38, 28

    Answer: 32.7

Tuesday 9 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00089

    Answer: 8.9 × 10-4
  2. 2. Algebra

    Factorise: x² - 8x + 15

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

    Adjacent = 12cm, angle = 46°. Find opposite

    Answer: 12.4cm
  4. 4. Ratio

    Divide 216 in the ratio 3:4:1

    Answer: 81, 108 and 27
  5. 5. Statistics

    The mean of 5 numbers is 27. If 4 of them are 49, 39, 28, 15, what is the missing number?

    Answer: 4

Wednesday 10 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0068

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

    Factorise: x² - 9x + 14

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

    Hypotenuse = 27cm, angle = 46°. Find adjacent side

    Answer: 18.8cm
  4. 4. Ratio

    Divide 108 in the ratio 1:2:1

    Answer: 27, 54 and 27
  5. 5. Statistics

    The mean of 6 numbers is 29. If 5 of them are 34, 35, 47, 32, 34, what is the missing number?

    Answer: -8

Thursday 11 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    21000

    Answer: 2.1 × 104
  2. 2. Algebra

    Factorise: x² + x - 2

    Answer: (x + 2)(x - 1)
  3. 3. Geometry

    Adjacent = 16cm, angle = 47°. Find opposite

    Answer: 17.2cm
  4. 4. Ratio

    Divide 176 in the ratio 3:4:1

    Answer: 66, 88 and 22
  5. 5. Statistics

    Calculate the mean of: 45, 42, 9, 50, 45, 37, 44, 15

    Answer: 35.9

Friday 12 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.038

    Answer: 3.8 × 10-2
  2. 2. Algebra

    Factorise: x² + 3x - 4

    Answer: (x + 4)(x - 1)
  3. 3. Geometry

    Hypotenuse = 35cm, angle = 39°. Find adjacent side

    Answer: 27.2cm
  4. 4. Ratio

    Divide 150 in the ratio 1:3:1

    Answer: 30, 90 and 30
  5. 5. Statistics

    Calculate the mean of: 26, 5, 42, 42, 43, 24, 19

    Answer: 28.7