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Lintel Mar 21 - 27 25 questions
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Monday 21 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0072 in standard form

    Answer: 7.2 × 10-3
  2. 2. Algebra

    Factorise: x² - 4x - 60

    Answer: (x + 6)(x - 10)
  3. 3. Geometry

    Hypotenuse = 19cm, angle = 26°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 17.08cm
  4. 4. Ratio

    Red and blue sweets are in the ratio 11:8. What fraction of the sweets are blue?

    Answer: 8⁄19
  5. 5. Statistics

    The mean of 6 numbers is 27. If 5 of them are 34, 25, 37, 20, 32, what is the missing number?

    Answer: 14

Tuesday 22 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 11,000 in standard form

    Answer: 1.1 × 104
  2. 2. Algebra

    Factorise: x² - 10x + 9

    Answer: (x - 1)(x - 9)
  3. 3. Geometry

    Adjacent = 28cm, angle = 36°. Find opposite. Give your answer to 2 decimal places

    Answer: 20.34cm
  4. 4. Ratio

    Divide 180 in the ratio 1:4:4

    Answer: 20, 80 and 80
  5. 5. Statistics

    The mean of 4 numbers is 38. If 3 of them are 46, 24, 41, what is the missing number?

    Answer: 41

Wednesday 23 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0089 in standard form

    Answer: 8.9 × 10-3
  2. 2. Algebra

    Factorise: x² + 2x - 35

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

    Hypotenuse = 28cm, angle = 51°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 17.62cm
  4. 4. Ratio

    Express the second part of 3:14 as a fraction in simplest form

    Answer: 14⁄17
  5. 5. Statistics

    Calculate the mean of: 12, 33, 30, 8, 21, 10

    Answer: 19

Thursday 24 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00072 in standard form

    Answer: 7.2 × 10-4
  2. 2. Algebra

    Factorise: x² + x - 6

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

    Hypotenuse = 17cm, angle = 43°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 12.43cm
  4. 4. Ratio

    £215.00 is shared between A and B in the ratio 3:2. How much does A receive?

    Answer: £129.00
  5. 5. Statistics

    The mean of 4 numbers is 31. If 3 of them are 23, 23, 50, what is the missing number?

    Answer: 28

Friday 25 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 350,000,000 in standard form

    Answer: 3.5 × 108
  2. 2. Algebra

    Factorise: x² + 18x + 81

    Answer: (x + 9)(x + 9)
  3. 3. Geometry

    Adjacent = 16cm, angle = 54°. Find opposite. Give your answer to 2 decimal places

    Answer: 22.02cm
  4. 4. Ratio

    £175.00 is shared between A and B in the ratio 3:2. How much does A receive?

    Answer: £105.00
  5. 5. Statistics

    Calculate the mean of: 47, 35, 35, 25, 35, 30

    Answer: 34.5