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Lintel Oct 21 - 27 25 questions
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Monday 21 October 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00046

    Answer: 4.6 × 10-4
  2. 2. Algebra

    Factorise: x² - 7x + 10

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

    Adjacent = 17cm, angle = 52°. Find opposite

    Answer: 21.8cm
  4. 4. Ratio

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

    Answer: 15
  5. 5. Statistics

    The mean of 5 numbers is 34. If 4 of them are 31, 41, 47, 21, what is the missing number?

    Answer: 30

Tuesday 22 October 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    85000000

    Answer: 8.5 × 107
  2. 2. Algebra

    Factorise: x² - 6x + 8

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

    Hypotenuse = 15cm, angle = 65°. Find adjacent side

    Answer: 6.3cm
  4. 4. Ratio

    £224.00 is shared between A and B in the ratio 5:3. How much does A receive?

    Answer: £140.00
  5. 5. Statistics

    The mean of 6 numbers is 34. If 5 of them are 49, 22, 50, 19, 44, what is the missing number?

    Answer: 20

Wednesday 23 October 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.051

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

    Factorise: x² + 2x - 15

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

    Adjacent = 22cm, angle = 58°. Find opposite

    Answer: 35.2cm
  4. 4. Ratio

    In ratio 4:2:1, what fraction is the second part?

    Answer: 27
  5. 5. Statistics

    Calculate the mean of: 16, 9, 46, 7, 38, 17

    Answer: 22.2

Thursday 24 October 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.031

    Answer: 3.1 × 10-2
  2. 2. Algebra

    Factorise: x² + 3x - 28

    Answer: (x + 7)(x - 4)
  3. 3. Geometry

    Adjacent = 14cm, angle = 51°. Find opposite

    Answer: 17.3cm
  4. 4. Ratio

    Simplify: 12:4:12

    Answer: 3:1:3
  5. 5. Statistics

    The mean of 4 numbers is 31. If 3 of them are 16, 40, 46, what is the missing number?

    Answer: 22

Friday 25 October 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    21000000

    Answer: 2.1 × 107
  2. 2. Algebra

    Factorise: x² - 10x + 21

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

    Hypotenuse = 35cm, angle = 50°. Find adjacent side

    Answer: 22.5cm
  4. 4. Ratio

    Simplify: 12:12:15

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

    Calculate the mean of: 49, 14, 14, 49, 46, 16

    Answer: 31.3