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Lintel Jul 19 - 25 25 questions
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Monday 19 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    880000

    Answer: 8.8 × 105
  2. 2. Algebra

    Factorise: x² - 5x + 6

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

    Adjacent = 30cm, angle = 46°. Find opposite

    Answer: 31.cm
  4. 4. Ratio

    Divide 120 in the ratio 4:3:1

    Answer: 60, 45 and 15
  5. 5. Statistics

    Calculate the mean of: 9, 45, 23, 20, 22, 45, 18, 31

    Answer: 26.6

Tuesday 20 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.07

    Answer: 7 × 10-2
  2. 2. Algebra

    Factorise: x² - 7x + 12

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

    Hypotenuse = 35cm, angle = 40°. Find adjacent side

    Answer: 26.8cm
  4. 4. Ratio

    Divide 176 in the ratio 3:1:4

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

    The mean of 5 numbers is 39. If 4 of them are 35, 16, 25, 23, what is the missing number?

    Answer: 96

Wednesday 21 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    46000000

    Answer: 4.6 × 107
  2. 2. Algebra

    Factorise: x² + x - 2

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

    Adjacent = 13cm, angle = 49°. Find opposite

    Answer: 15cm
  4. 4. Ratio

    Express the first part of 4:6 as a fraction in simplest form

    Answer: 25
  5. 5. Statistics

    Calculate the mean of: 43, 15, 21, 26, 18, 47, 49, 28

    Answer: 30.9

Thursday 22 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.023

    Answer: 2.3 × 10-2
  2. 2. Algebra

    Factorise: x² + x - 6

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

    Hypotenuse = 27cm, angle = 51°. Find adjacent side

    Answer: 17cm
  4. 4. Ratio

    Divide 224 in the ratio 3:3:2

    Answer: 84, 84 and 56
  5. 5. Statistics

    Calculate the mean of: 19, 47, 28, 28, 6, 30

    Answer: 26.3

Friday 23 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    340000

    Answer: 3.4 × 105
  2. 2. Algebra

    Factorise: x² + 2x - 3

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

    Adjacent = 16cm, angle = 54°. Find opposite

    Answer: 22cm
  4. 4. Ratio

    Divide 133 in the ratio 2:3:2

    Answer: 38, 57 and 38
  5. 5. Statistics

    The mean of 4 numbers is 39. If 3 of them are 24, 42, 34, what is the missing number?

    Answer: 56