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Lintel Jun 24 - 30 25 questions
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Monday 24 June 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00051

    Answer: 5.1 × 10-4
  2. 2. Algebra

    Factorise: x² + 4x - 21

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

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

    Answer: 18.3cm
  4. 4. Ratio

    In ratio 3:2:3, what fraction is the second part?

    Answer: 28
  5. 5. Statistics

    Calculate the mean of: 47, 40, 19, 39, 47, 25

    Answer: 36.2

Tuesday 25 June 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    360000

    Answer: 3.6 × 105
  2. 2. Algebra

    Factorise: x² - 8x + 12

    Answer: (x - 6)(x - 2)
  3. 3. Geometry

    Adjacent = 10cm, angle = 38°. Find opposite

    Answer: 7.8cm
  4. 4. Ratio

    In ratio 3:4:4, what fraction is the second part?

    Answer: 411
  5. 5. Statistics

    The mean of 4 numbers is 37. If 3 of them are 16, 27, 27, what is the missing number?

    Answer: 78

Wednesday 26 June 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00039

    Answer: 3.9 × 10-4
  2. 2. Algebra

    Factorise: x² - 6x + 8

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

    Hypotenuse = 25cm, angle = 50°. Find adjacent side

    Answer: 16.cm
  4. 4. Ratio

    In ratio 1:1:2, what fraction is the second part?

    Answer: 14
  5. 5. Statistics

    The mean of 5 numbers is 31. If 4 of them are 46, 32, 20, 28, what is the missing number?

    Answer: 29

Thursday 27 June 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    1500000

    Answer: 1.5 × 106
  2. 2. Algebra

    Factorise: x² + 2x - 15

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

    Adjacent = 14cm, angle = 34°. Find opposite

    Answer: 9.4cm
  4. 4. Ratio

    In ratio 1:3:4, what fraction is the second part?

    Answer: 38
  5. 5. Statistics

    Calculate the mean of: 8, 9, 7, 39, 9, 41, 34

    Answer: 21

Friday 28 June 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    21000000

    Answer: 2.1 × 107
  2. 2. Algebra

    Factorise: x² + 2x - 35

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

    Adjacent = 10cm, angle = 35°. Find opposite

    Answer: 7cm
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 40, 9, 38, 48, 36, 22

    Answer: 32.2