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Lintel Jan 20 - 26 25 questions
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Monday 20 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 70,000,000 in standard form

    Answer: 7 × 107
  2. 2. Algebra

    Factorise: x² + 2x - 8

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

    Adjacent = 17cm, angle = 55°. Find opposite. Give your answer to 2 decimal places

    Answer: 24.28cm
  4. 4. Ratio

    £350.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £200.00
  5. 5. Statistics

    The mean of 4 numbers is 27. If 3 of them are 39, 24, 22, what is the missing number?

    Answer: 23

Tuesday 21 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000052 in standard form

    Answer: 5.2 × 10-5
  2. 2. Algebra

    Factorise: x² - x - 6

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

    Hypotenuse = 37cm, angle = 47°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 25.23cm
  4. 4. Ratio

    £336.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £240.00
  5. 5. Statistics

    Calculate the mean of: 24, 34, 17, 5, 45, 24, 19, 8

    Answer: 22

Wednesday 22 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 85,000 in standard form

    Answer: 8.5 × 104
  2. 2. Algebra

    Factorise: x² + 9x - 10

    Answer: (x + 10)(x - 1)
  3. 3. Geometry

    Adjacent = 17cm, angle = 56°. Find opposite. Give your answer to 2 decimal places

    Answer: 25.2cm
  4. 4. Ratio

    £180.00 is shared between A and B in the ratio 3:2. How much does A receive?

    Answer: £108.00
  5. 5. Statistics

    Calculate the mean of: 40, 38, 34, 10, 12, 27. Give your answer to 2 decimal places

    Answer: 26.83

Thursday 23 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.043 in standard form

    Answer: 4.3 × 10-2
  2. 2. Algebra

    Factorise: x² - 11x + 24

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

    Hypotenuse = 40cm, angle = 52°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 24.63cm
  4. 4. Ratio

    Simplify: 6:6:8

    Answer: 3:3:4
  5. 5. Statistics

    The mean of 4 numbers is 37. If 3 of them are 48, 40, 27, what is the missing number?

    Answer: 33

Friday 24 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.002 in standard form

    Answer: 2 × 10-3
  2. 2. Algebra

    Factorise: x² - 6x - 27

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

    Hypotenuse = 34cm, angle = 61°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 16.48cm
  4. 4. Ratio

    Simplify: 16:20:8

    Answer: 4:5:2
  5. 5. Statistics

    Calculate the mean of: 47, 24, 29, 20, 40, 12, 16. Give your answer to 2 decimal places

    Answer: 26.86