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Lintel Nov 19 - 25 25 questions
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Monday 19 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    9900000

    Answer: 9.9 × 106
  2. 2. Algebra

    Factorise: x² - 9x + 18

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

    Adjacent = 25cm, angle = 58°. Find opposite

    Answer: 40cm
  4. 4. Ratio

    Simplify: 12:20:12

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

    The mean of 4 numbers is 30. If 3 of them are 32, 38, 34, what is the missing number?

    Answer: 16

Tuesday 20 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.09

    Answer: 9 × 10-2
  2. 2. Algebra

    Factorise: x² - 10x + 21

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

    Hypotenuse = 39cm, angle = 60°. Find adjacent side

    Answer: 19.5cm
  4. 4. Ratio

    Divide 55 in the ratio 2:2:1

    Answer: 22, 22 and 11
  5. 5. Statistics

    Calculate the mean of: 27, 28, 44, 34, 5, 32

    Answer: 28.3

Wednesday 21 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    79000000

    Answer: 7.9 × 107
  2. 2. Algebra

    Factorise: x² + 2x - 15

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

    Adjacent = 15cm, angle = 52°. Find opposite

    Answer: 19.2cm
  4. 4. Ratio

    Divide 130 in the ratio 3:1:1

    Answer: 78, 26 and 26
  5. 5. Statistics

    The mean of 6 numbers is 25. If 5 of them are 30, 40, 46, 44, 25, what is the missing number?

    Answer: -35

Thursday 22 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.096

    Answer: 9.6 × 10-2
  2. 2. Algebra

    Factorise: x² + x - 2

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

    Hypotenuse = 16cm, angle = 52°. Find adjacent side

    Answer: 9.9cm
  4. 4. Ratio

    Express the first part of 6:4 as a fraction in simplest form

    Answer: 3⁄5
  5. 5. Statistics

    The mean of 6 numbers is 23. If 5 of them are 31, 48, 37, 33, 47, what is the missing number?

    Answer: -58

Friday 23 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    6300000

    Answer: 6.3 × 106
  2. 2. Algebra

    Factorise: x² - 12x + 36

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

    Adjacent = 28cm, angle = 58°. Find opposite

    Answer: 44.8cm
  4. 4. Ratio

    Divide 203 in the ratio 1:3:3

    Answer: 29, 87 and 87
  5. 5. Statistics

    Calculate the mean of: 39, 24, 48, 40, 47, 18, 31

    Answer: 35.3