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Lintel Apr 18 - 24 25 questions
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Monday 18 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    36000000

    Answer: 3.6 × 107
  2. 2. Algebra

    Factorise: x² + 2x - 24

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

    Hypotenuse = 32cm, angle = 31°. Find adjacent side

    Answer: 27.4cm
  4. 4. Ratio

    Divide 102 in the ratio 4:1:1

    Answer: 68, 17 and 17
  5. 5. Statistics

    Calculate the mean of: 21, 39, 11, 32, 19, 30, 14, 38

    Answer: 25.5

Tuesday 19 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0088

    Answer: 8.8 × 10-3
  2. 2. Algebra

    Factorise: x² - 6x + 9

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

    Adjacent = 11cm, angle = 49°. Find opposite

    Answer: 12.7cm
  4. 4. Ratio

    Simplify: 24:16:8

    Answer: 3:2:1
  5. 5. Statistics

    The mean of 6 numbers is 29. If 5 of them are 19, 49, 42, 31, 31, what is the missing number?

    Answer: 2

Wednesday 20 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    32000000

    Answer: 3.2 × 107
  2. 2. Algebra

    Factorise: x² - 10x + 24

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

    Hypotenuse = 32cm, angle = 39°. Find adjacent side

    Answer: 24.9cm
  4. 4. Ratio

    Express the first part of 5:6 as a fraction in simplest form

    Answer: 511
  5. 5. Statistics

    Calculate the mean of: 50, 35, 26, 32, 38, 9

    Answer: 31.7

Thursday 21 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.092

    Answer: 9.2 × 10-2
  2. 2. Algebra

    Factorise: x² + x - 12

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

    Adjacent = 13cm, angle = 41°. Find opposite

    Answer: 11.3cm
  4. 4. Ratio

    Simplify: 24:12:20

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

    The mean of 6 numbers is 38. If 5 of them are 33, 47, 19, 26, 32, what is the missing number?

    Answer: 71

Friday 22 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    450000

    Answer: 4.5 × 105
  2. 2. Algebra

    Factorise: x² + 4x - 21

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

    Hypotenuse = 21cm, angle = 48°. Find adjacent side

    Answer: 14.cm
  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 39. If 4 of them are 17, 15, 24, 33, what is the missing number?

    Answer: 106