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Lintel Oct 29 - Nov 4 25 questions
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Monday 29 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    89000000

    Answer: 8.9 × 107
  2. 2. Algebra

    Factorise: x² - 12x + 36

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

    Adjacent = 22cm, angle = 49°. Find opposite

    Answer: 25.3cm
  4. 4. Ratio

    Divide 117 in the ratio 4:2:3

    Answer: 52, 26 and 39
  5. 5. Statistics

    Calculate the mean of: 36, 48, 27, 12, 21, 42, 38, 23

    Answer: 30.9

Tuesday 30 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    9700000

    Answer: 9.7 × 106
  2. 2. Algebra

    Factorise: x² - 6x + 8

    Answer: (x - 2)(x - 4)
  3. 3. Geometry

    Hypotenuse = 29cm, angle = 32°. Find adjacent side

    Answer: 24.6cm
  4. 4. Ratio

    Divide 99 in the ratio 4:3:2

    Answer: 44, 33 and 22
  5. 5. Statistics

    Calculate the mean of: 31, 17, 43, 44, 22, 25, 50, 36

    Answer: 33.5

Wednesday 31 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.096

    Answer: 9.6 × 10-2
  2. 2. Algebra

    Factorise: x² + x - 6

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

    Adjacent = 21cm, angle = 48°. Find opposite

    Answer: 23.3cm
  4. 4. Ratio

    Divide 91 in the ratio 4:1:2

    Answer: 52, 13 and 26
  5. 5. Statistics

    The mean of 6 numbers is 36. If 5 of them are 30, 16, 20, 49, 24, what is the missing number?

    Answer: 77

Thursday 1 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00061

    Answer: 6.1 × 10-4
  2. 2. Algebra

    Factorise: x² + 2x - 15

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

    Adjacent = 11cm, angle = 46°. Find opposite

    Answer: 11.4cm
  4. 4. Ratio

    Simplify: 18:15:12

    Answer: 6:5:4
  5. 5. Statistics

    Calculate the mean of: 23, 12, 14, 36, 50, 8, 8, 39

    Answer: 23.8

Friday 2 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    4600000

    Answer: 4.6 × 106
  2. 2. Algebra

    Factorise: x² + 3x - 10

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

    Hypotenuse = 29cm, angle = 54°. Find adjacent side

    Answer: 17cm
  4. 4. Ratio

    Divide 224 in the ratio 4:1:3

    Answer: 112, 28 and 84
  5. 5. Statistics

    Calculate the mean of: 43, 34, 46, 42, 23, 8, 14

    Answer: 30