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Lintel Apr 1 - 7 25 questions
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Monday 1 April 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    19000

    Answer: 1.9 × 104
  2. 2. Algebra

    Factorise: x² + 2x - 8

    Answer: (x + 4)(x - 2)
  3. 3. Geometry

    Adjacent = 10cm, angle = 39°. Find opposite

    Answer: 8.cm
  4. 4. Ratio

    Simplify: 10:4:8

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

    The mean of 4 numbers is 25. If 3 of them are 26, 31, 49, what is the missing number?

    Answer: -6

Tuesday 2 April 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0023

    Answer: 2.3 × 10-3
  2. 2. Algebra

    Factorise: x² + 3x - 18

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

    Hypotenuse = 19cm, angle = 30°. Find adjacent side

    Answer: 16.5cm
  4. 4. Ratio

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

    Answer: 57
  5. 5. Statistics

    The mean of 5 numbers is 23. If 4 of them are 20, 39, 50, 19, what is the missing number?

    Answer: -13

Wednesday 3 April 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    91000000

    Answer: 9.1 × 107
  2. 2. Algebra

    Factorise: x² - 5x + 6

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

    Adjacent = 15cm, angle = 57°. Find opposite

    Answer: 23.cm
  4. 4. Ratio

    Simplify: 10:4:10

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

    Calculate the mean of: 11, 16, 7, 37, 11, 17

    Answer: 16.5

Thursday 4 April 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    9800000

    Answer: 9.8 × 106
  2. 2. Algebra

    Factorise: x² - 9x + 14

    Answer: (x - 7)(x - 2)
  3. 3. Geometry

    Adjacent = 25cm, angle = 60°. Find opposite

    Answer: 43.3cm
  4. 4. Ratio

    £423.00 is shared between A and B in the ratio 5:4. How much does A receive?

    Answer: £235.00
  5. 5. Statistics

    The mean of 5 numbers is 25. If 4 of them are 15, 49, 17, 44, what is the missing number?

    Answer: 0

Friday 5 April 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0001

    Answer: 1 × 10-4
  2. 2. Algebra

    Factorise: x² + 5x - 24

    Answer: (x + 8)(x - 3)
  3. 3. Geometry

    Hypotenuse = 35cm, angle = 36°. Find adjacent side

    Answer: 28.3cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 39, 31, 32, 11, 37, 22, 50

    Answer: 31.7