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Lintel Jul 12 - 18 25 questions
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Monday 12 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00011

    Answer: 1.1 × 10-4
  2. 2. Algebra

    Factorise: x² - 9x + 20

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

    Hypotenuse = 16cm, angle = 52°. Find adjacent side

    Answer: 9.9cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 6 numbers is 22. If 5 of them are 30, 39, 21, 26, 24, what is the missing number?

    Answer: -8

Tuesday 13 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    7500000

    Answer: 7.5 × 106
  2. 2. Algebra

    Factorise: x² + x - 12

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

    Adjacent = 28cm, angle = 59°. Find opposite

    Answer: 46.6cm
  4. 4. Ratio

    In ratio 2:2:3, what fraction is the second part?

    Answer: 27
  5. 5. Statistics

    Calculate the mean of: 13, 36, 20, 24, 13, 18, 19

    Answer: 20.4

Wednesday 14 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    13000

    Answer: 1.3 × 104
  2. 2. Algebra

    Factorise: x² + x - 30

    Answer: (x + 6)(x - 5)
  3. 3. Geometry

    Adjacent = 17cm, angle = 43°. Find opposite

    Answer: 15.9cm
  4. 4. Ratio

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

    Answer: 13
  5. 5. Statistics

    The mean of 5 numbers is 33. If 4 of them are 42, 21, 34, 20, what is the missing number?

    Answer: 48

Thursday 15 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00048

    Answer: 4.8 × 10-4
  2. 2. Algebra

    Factorise: x² - 9x + 18

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

    Hypotenuse = 16cm, angle = 35°. Find adjacent side

    Answer: 13.cm
  4. 4. Ratio

    Divide 200 in the ratio 3:3:2

    Answer: 75, 75 and 50
  5. 5. Statistics

    Calculate the mean of: 35, 26, 43, 10, 32, 46

    Answer: 32

Friday 16 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    58000

    Answer: 5.8 × 104
  2. 2. Algebra

    Factorise: x² + x - 2

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

    Adjacent = 17cm, angle = 55°. Find opposite

    Answer: 24.3cm
  4. 4. Ratio

    Simplify: 8:4:6

    Answer: 4:2:3
  5. 5. Statistics

    Calculate the mean of: 9, 29, 30, 47, 50, 6, 26, 37

    Answer: 29.3