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Lintel Sep 7 - 13 25 questions
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Monday 7 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    14000000

    Answer: 1.4 × 107
  2. 2. Algebra

    Factorise: x² + 3x - 4

    Answer: (x + 4)(x - 1)
  3. 3. Geometry

    Hypotenuse = 35cm, angle = 48°. Find adjacent side

    Answer: 23.4cm
  4. 4. Ratio

    Simplify: 6:9:9

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

    The mean of 5 numbers is 40. If 4 of them are 23, 46, 15, 21, what is the missing number?

    Answer: 95

Tuesday 8 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    69000000

    Answer: 6.9 × 107
  2. 2. Algebra

    Factorise: x² + 2x - 3

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

    Hypotenuse = 35cm, angle = 37°. Find adjacent side

    Answer: 28cm
  4. 4. Ratio

    Express the first part of 2:4 as a fraction in simplest form

    Answer: 13
  5. 5. Statistics

    The mean of 6 numbers is 28. If 5 of them are 35, 47, 27, 33, 16, what is the missing number?

    Answer: 10

Wednesday 9 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.032

    Answer: 3.2 × 10-2
  2. 2. Algebra

    Factorise: x² - 6x + 9

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

    Adjacent = 20cm, angle = 34°. Find opposite

    Answer: 13.5cm
  4. 4. Ratio

    Divide 60 in the ratio 2:2:1

    Answer: 24, 24 and 12
  5. 5. Statistics

    Calculate the mean of: 28, 13, 32, 9, 43, 7, 25, 40

    Answer: 24.6

Thursday 10 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.016

    Answer: 1.6 × 10-2
  2. 2. Algebra

    Factorise: x² - 11x + 30

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

    Hypotenuse = 35cm, angle = 33°. Find adjacent side

    Answer: 29.4cm
  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: 48, 35, 31, 21, 29, 6, 15

    Answer: 26.4

Friday 11 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    7600000

    Answer: 7.6 × 106
  2. 2. Algebra

    Factorise: x² + x - 12

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

    Adjacent = 10cm, angle = 56°. Find opposite

    Answer: 14.8cm
  4. 4. Ratio

    Divide 165 in the ratio 4:4:3

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

    The mean of 4 numbers is 31. If 3 of them are 31, 33, 26, what is the missing number?

    Answer: 34