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Lintel Dec 7 - 13 25 questions
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Monday 7 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0073 in standard form

    Answer: 7.3 × 10-3
  2. 2. Algebra

    Factorise: x² + 18x + 72

    Answer: (x + 12)(x + 6)
  3. 3. Geometry

    Adjacent = 25cm, angle = 60°. Find opposite. Give your answer to 2 decimal places

    Answer: 43.3cm
  4. 4. Ratio

    Simplify the ratio 9m : 65cm

    Answer: 180:13
  5. 5. Statistics

    The mean of 6 numbers is 39. If 5 of them are 38, 34, 22, 50, 21, what is the missing number?

    Answer: 69

Tuesday 8 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00094 in standard form

    Answer: 9.4 × 10-4
  2. 2. Algebra

    Factorise: x² - 13x + 36

    Answer: (x - 4)(x - 9)
  3. 3. Geometry

    Adjacent = 12cm, angle = 39°. Find opposite. Give your answer to 2 decimal places

    Answer: 9.72cm
  4. 4. Ratio

    £264.00 is shared between A and B in the ratio 5:3. How much does A receive?

    Answer: £165.00
  5. 5. Statistics

    The mean of 4 numbers is 29. If 3 of them are 32, 21, 37, what is the missing number?

    Answer: 26

Wednesday 9 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 9,400,000 in standard form

    Answer: 9.4 × 106
  2. 2. Algebra

    Factorise: x² + 3x - 54

    Answer: (x + 9)(x - 6)
  3. 3. Geometry

    Hypotenuse = 39cm, angle = 39°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 30.31cm
  4. 4. Ratio

    Orange, purple and pink sweets are in the ratio 10:3:3. What fraction of the sweets are pink?

    Answer: 3⁄16
  5. 5. Statistics

    Calculate the mean of: 48, 43, 23, 14, 31, 37. Give your answer to 2 decimal places

    Answer: 32.67

Thursday 10 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 9,300,000 in standard form

    Answer: 9.3 × 106
  2. 2. Algebra

    Factorise: x² + x - 42

    Answer: (x + 7)(x - 6)
  3. 3. Geometry

    Adjacent = 26cm, angle = 40°. Find opposite. Give your answer to 2 decimal places

    Answer: 21.82cm
  4. 4. Ratio

    In ratio 4:6:1, what fraction is the first part?

    Answer: 4⁄11
  5. 5. Statistics

    Calculate the mean of: 31, 34, 13, 10, 30, 29, 25, 28

    Answer: 25

Friday 11 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.042 in standard form

    Answer: 4.2 × 10-2
  2. 2. Algebra

    Factorise: x² + 22x + 121

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

    Hypotenuse = 36cm, angle = 48°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 24.09cm
  4. 4. Ratio

    In ratio 11:11:10, what fraction is the first part?

    Answer: 11⁄32
  5. 5. Statistics

    The mean of 5 numbers is 29. If 4 of them are 50, 18, 34, 37, what is the missing number?

    Answer: 6