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Lintel Dec 20 - 26 25 questions
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Monday 20 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.011

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

    Factorise: x² - 10x + 24

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

    Hypotenuse = 27cm, angle = 62°. Find adjacent side

    Answer: 12.7cm
  4. 4. Ratio

    Express the first part of 2:5 as a fraction in simplest form

    Answer: 27
  5. 5. Statistics

    Calculate the mean of: 41, 23, 28, 42, 42, 23

    Answer: 33.2

Tuesday 21 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    960000

    Answer: 9.6 × 105
  2. 2. Algebra

    Factorise: x² + x - 20

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

    Adjacent = 16cm, angle = 57°. Find opposite

    Answer: 24.6cm
  4. 4. Ratio

    Divide 60 in the ratio 4:1:1

    Answer: 40, 10 and 10
  5. 5. Statistics

    The mean of 5 numbers is 37. If 4 of them are 37, 32, 27, 27, what is the missing number?

    Answer: 62

Wednesday 22 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0099

    Answer: 9.9 × 10-3
  2. 2. Algebra

    Factorise: x² + 2x - 35

    Answer: (x + 7)(x - 5)
  3. 3. Geometry

    Hypotenuse = 15cm, angle = 53°. Find adjacent side

    Answer: 9cm
  4. 4. Ratio

    Simplify: 6:8:12

    Answer: 3:4:6
  5. 5. Statistics

    The mean of 4 numbers is 33. If 3 of them are 41, 20, 49, what is the missing number?

    Answer: 22

Thursday 23 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    630000

    Answer: 6.3 × 105
  2. 2. Algebra

    Factorise: x² - 6x + 9

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

    Adjacent = 30cm, angle = 35°. Find opposite

    Answer: 21cm
  4. 4. Ratio

    Simplify: 12:6:9

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

    Calculate the mean of: 7, 25, 46, 10, 6, 35, 28, 42

    Answer: 24.9

Friday 24 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    74000000

    Answer: 7.4 × 107
  2. 2. Algebra

    Factorise: x² - 7x + 12

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

    Adjacent = 30cm, angle = 53°. Find opposite

    Answer: 39.8cm
  4. 4. Ratio

    £140.00 is shared between A and B in the ratio 2:3. How much does A receive?

    Answer: £56.00
  5. 5. Statistics

    The mean of 4 numbers is 23. If 3 of them are 17, 15, 35, what is the missing number?

    Answer: 25