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Lintel Jul 1 - 7 25 questions
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Monday 1 July 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    480000

    Answer: 4.8 × 105
  2. 2. Algebra

    Factorise: x² + 2x - 35

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

    Hypotenuse = 16cm, angle = 41°. Find adjacent side

    Answer: 12.cm
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 28. If 4 of them are 30, 24, 17, 31, what is the missing number?

    Answer: 38

Tuesday 2 July 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00033

    Answer: 3.3 × 10-4
  2. 2. Algebra

    Factorise: x² + x - 12

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

    Adjacent = 13cm, angle = 38°. Find opposite

    Answer: 10.2cm
  4. 4. Ratio

    £228.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £76.00
  5. 5. Statistics

    The mean of 5 numbers is 21. If 4 of them are 25, 49, 25, 37, what is the missing number?

    Answer: -31

Wednesday 3 July 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    51000

    Answer: 5.1 × 104
  2. 2. Algebra

    Factorise: x² - 10x + 24

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

    Hypotenuse = 32cm, angle = 45°. Find adjacent side

    Answer: 22.6cm
  4. 4. Ratio

    In ratio 2:3:1, what fraction is the second part?

    Answer: 36
  5. 5. Statistics

    Calculate the mean of: 30, 20, 43, 17, 47, 27

    Answer: 30.7

Thursday 4 July 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    260000

    Answer: 2.6 × 105
  2. 2. Algebra

    Factorise: x² - 7x + 10

    Answer: (x - 2)(x - 5)
  3. 3. Geometry

    Hypotenuse = 29cm, angle = 40°. Find adjacent side

    Answer: 22.2cm
  4. 4. Ratio

    Simplify: 8:16:16

    Answer: 1:2:2
  5. 5. Statistics

    The mean of 6 numbers is 22. If 5 of them are 27, 49, 26, 36, 22, what is the missing number?

    Answer: -28

Friday 5 July 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0087

    Answer: 8.7 × 10-3
  2. 2. Algebra

    Factorise: x² + 3x - 10

    Answer: (x + 5)(x - 2)
  3. 3. Geometry

    Adjacent = 18cm, angle = 30°. Find opposite

    Answer: 10.4cm
  4. 4. Ratio

    Simplify: 20:8:16

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

    Calculate the mean of: 33, 22, 36, 35, 42, 17, 15

    Answer: 28.6