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Lintel Nov 10 - 16 25 questions
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Monday 10 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.09 in standard form

    Answer: 9 × 10-2
  2. 2. Algebra

    Factorise: x² - 3x - 70

    Answer: (x + 7)(x - 10)
  3. 3. Geometry

    Hypotenuse = 31cm, angle = 60°. Find adjacent side

    Answer: 15.5cm
  4. 4. Ratio

    Divide 150 in the ratio 1:1:4

    Answer: 25, 25 and 100
  5. 5. Statistics

    Calculate the mean of: 22, 11, 36, 30, 44, 41, 7, 21

    Answer: 26.5

Tuesday 11 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 9,800,000 in standard form

    Answer: 9.8 × 106
  2. 2. Algebra

    Factorise: x² + 2x - 99

    Answer: (x + 11)(x - 9)
  3. 3. Geometry

    Adjacent = 19cm, angle = 53°. Find opposite. Give your answer to 2 decimal places

    Answer: 25.21cm
  4. 4. Ratio

    Simplify: 24:8:8

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

    The mean of 4 numbers is 37. If 3 of them are 31, 25, 43, what is the missing number?

    Answer: 49

Wednesday 12 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0067 in standard form

    Answer: 6.7 × 10-3
  2. 2. Algebra

    Factorise: x² - 8x - 9

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

    Hypotenuse = 16cm, angle = 30°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.86cm
  4. 4. Ratio

    Express the first part of 12:6 as a fraction in simplest form

    Answer: 2⁄3
  5. 5. Statistics

    The mean of 5 numbers is 36. If 4 of them are 23, 48, 19, 42, what is the missing number?

    Answer: 48

Thursday 13 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 700,000 in standard form

    Answer: 7 × 105
  2. 2. Algebra

    Factorise: x² - 3x - 28

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

    Adjacent = 13cm, angle = 60°. Find opposite. Give your answer to 2 decimal places

    Answer: 22.52cm
  4. 4. Ratio

    Red and blue beads are in the ratio 12:3. What fraction of the beads are red?

    Answer: 4⁄5
  5. 5. Statistics

    Calculate the mean of: 10, 45, 32, 7, 38, 19. Give your answer to 2 decimal places

    Answer: 25.17

Friday 14 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 6,500,000 in standard form

    Answer: 6.5 × 106
  2. 2. Algebra

    Factorise: x² + 4x - 5

    Answer: (x + 5)(x - 1)
  3. 3. Geometry

    Adjacent = 14cm, angle = 52°. Find opposite. Give your answer to 2 decimal places

    Answer: 17.92cm
  4. 4. Ratio

    Red, blue and green counters are in the ratio 2:8:3. What fraction of the counters are green?

    Answer: 3⁄13
  5. 5. Statistics

    The mean of 4 numbers is 21. If 3 of them are 19, 29, 18, what is the missing number?

    Answer: 18