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Lintel May 27 - Jun 2 25 questions
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Monday 27 May 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    34000

    Answer: 3.4 × 104
  2. 2. Algebra

    Factorise: x² + 4x - 5

    Answer: (x + 5)(x - 1)
  3. 3. Geometry

    Hypotenuse = 20cm, angle = 30°. Find adjacent side

    Answer: 17.3cm
  4. 4. Ratio

    Express the first part of 5:4 as a fraction in simplest form

    Answer: 59
  5. 5. Statistics

    Calculate the mean of: 22, 36, 23, 35, 35, 26, 45

    Answer: 31.7

Tuesday 28 May 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    1800000

    Answer: 1.8 × 106
  2. 2. Algebra

    Factorise: x² + 3x - 10

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

    Hypotenuse = 31cm, angle = 54°. Find adjacent side

    Answer: 18.2cm
  4. 4. Ratio

    Divide 160 in the ratio 3:3:2

    Answer: 60, 60 and 40
  5. 5. Statistics

    Calculate the mean of: 21, 34, 12, 30, 25, 11, 35, 13

    Answer: 22.6

Wednesday 29 May 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.024

    Answer: 2.4 × 10-2
  2. 2. Algebra

    Factorise: x² - 10x + 24

    Answer: (x - 4)(x - 6)
  3. 3. Geometry

    Adjacent = 13cm, angle = 33°. Find opposite

    Answer: 8.4cm
  4. 4. Ratio

    Simplify: 8:12:24

    Answer: 2:3:6
  5. 5. Statistics

    The mean of 4 numbers is 30. If 3 of them are 47, 40, 43, what is the missing number?

    Answer: -10

Thursday 30 May 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.052

    Answer: 5.2 × 10-2
  2. 2. Algebra

    Factorise: x² - 13x + 42

    Answer: (x - 6)(x - 7)
  3. 3. Geometry

    Hypotenuse = 40cm, angle = 28°. Find adjacent side

    Answer: 35.3cm
  4. 4. Ratio

    Express the first part of 4:5 as a fraction in simplest form

    Answer: 49
  5. 5. Statistics

    The mean of 5 numbers is 22. If 4 of them are 34, 27, 24, 47, what is the missing number?

    Answer: -22

Friday 31 May 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    74000000

    Answer: 7.4 × 107
  2. 2. Algebra

    Factorise: x² + x - 12

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

    Adjacent = 13cm, angle = 47°. Find opposite

    Answer: 13.9cm
  4. 4. Ratio

    Simplify: 16:20:8

    Answer: 4:5:2
  5. 5. Statistics

    Calculate the mean of: 38, 39, 35, 30, 28, 29, 37, 46

    Answer: 35.3