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Lintel Oct 4 - 10 25 questions
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Monday 4 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0082

    Answer: 8.2 × 10-3
  2. 2. Algebra

    Factorise: x² + x - 2

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

    Hypotenuse = 34cm, angle = 65°. Find adjacent side

    Answer: 14.4cm
  4. 4. Ratio

    Simplify the ratio 2m:200cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 41, 10, 12, 31, 24, 7, 46

    Answer: 24.4

Tuesday 5 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    10000000

    Answer: 1 × 107
  2. 2. Algebra

    Factorise: x² - 9x + 18

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

    Adjacent = 27cm, angle = 58°. Find opposite

    Answer: 43.2cm
  4. 4. Ratio

    In ratio 2:4:4, what fraction is the second part?

    Answer: 410
  5. 5. Statistics

    The mean of 6 numbers is 33. If 5 of them are 43, 48, 33, 34, 29, what is the missing number?

    Answer: 11

Wednesday 6 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0041

    Answer: 4.1 × 10-3
  2. 2. Algebra

    Factorise: x² - 10x + 24

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

    Hypotenuse = 29cm, angle = 51°. Find adjacent side

    Answer: 18.3cm
  4. 4. Ratio

    In ratio 3:1:3, what fraction is the second part?

    Answer: 17
  5. 5. Statistics

    The mean of 5 numbers is 34. If 4 of them are 32, 49, 19, 32, what is the missing number?

    Answer: 38

Thursday 7 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    25000000

    Answer: 2.5 × 107
  2. 2. Algebra

    Factorise: x² + 3x - 4

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

    Adjacent = 11cm, angle = 50°. Find opposite

    Answer: 13.cm
  4. 4. Ratio

    In ratio 4:2:2, what fraction is the second part?

    Answer: 28
  5. 5. Statistics

    Calculate the mean of: 44, 45, 49, 13, 36, 30

    Answer: 36.2

Friday 8 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    870000

    Answer: 8.7 × 105
  2. 2. Algebra

    Factorise: x² - 8x + 16

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

    Adjacent = 22cm, angle = 53°. Find opposite

    Answer: 29.2cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 38, 31, 30, 5, 10, 44

    Answer: 26.3