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Lintel Dec 29 - Jan 4 25 questions
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Monday 29 December 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 76,000 in standard form

    Answer: 7.6 × 104
  2. 2. Algebra

    Factorise: x² + 5x - 24

    Answer: (x + 8)(x - 3)
  3. 3. Geometry

    Hypotenuse = 20cm, angle = 58°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 10.6cm
  4. 4. Ratio

    Simplify the ratio 5m : 40cm

    Answer: 25:2
  5. 5. Statistics

    The mean of 4 numbers is 40. If 3 of them are 48, 49, 29, what is the missing number?

    Answer: 34

Tuesday 30 December 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 310,000,000 in standard form

    Answer: 3.1 × 108
  2. 2. Algebra

    Factorise: x² - x - 42

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

    Adjacent = 18cm, angle = 51°. Find opposite. Give your answer to 2 decimal places

    Answer: 22.23cm
  4. 4. Ratio

    Simplify the ratio m : 15cm

    Answer: 20:3
  5. 5. Statistics

    The mean of 6 numbers is 27. If 5 of them are 27, 31, 26, 20, 30, what is the missing number?

    Answer: 28

Wednesday 31 December 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0037 in standard form

    Answer: 3.7 × 10-3
  2. 2. Algebra

    Factorise: x² - 3x - 54

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

    Hypotenuse = 24cm, angle = 54°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.11cm
  4. 4. Ratio

    Simplify the ratio £2 : 70p

    Answer: 20:7
  5. 5. Statistics

    Calculate the mean of: 27, 36, 42, 12, 16, 22, 28. Give your answer to 2 decimal places

    Answer: 26.14

Thursday 1 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000045 in standard form

    Answer: 4.5 × 10-5
  2. 2. Algebra

    Factorise: x² + 7x - 18

    Answer: (x + 9)(x - 2)
  3. 3. Geometry

    Hypotenuse = 25cm, angle = 36°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 20.23cm
  4. 4. Ratio

    £110.00 is shared between A and B in the ratio 3:2. How much does A receive?

    Answer: £66.00
  5. 5. Statistics

    The mean of 5 numbers is 36. If 4 of them are 29, 18, 42, 30, what is the missing number?

    Answer: 61

Friday 2 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 3,300,000 in standard form

    Answer: 3.3 × 106
  2. 2. Algebra

    Factorise: x² + 2x - 24

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

    Adjacent = 28cm, angle = 54°. Find opposite. Give your answer to 2 decimal places

    Answer: 38.54cm
  4. 4. Ratio

    Simplify the ratio £1 : 55p

    Answer: 20:11
  5. 5. Statistics

    The mean of 4 numbers is 37. If 3 of them are 45, 29, 16, what is the missing number?

    Answer: 58