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Lintel May 16 - 22 25 questions
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Monday 16 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 35,000 in standard form

    Answer: 3.5 × 104
  2. 2. Algebra

    Factorise: x² - 15x + 50

    Answer: (x - 5)(x - 10)
  3. 3. Geometry

    Hypotenuse = 32cm, angle = 58°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 16.96cm
  4. 4. Ratio

    Simplify the ratio 1 litre : 600 ml

    Answer: 5:3
  5. 5. Statistics

    Calculate the mean of: 46, 10, 32, 45, 34, 43, 22, 48

    Answer: 35

Tuesday 17 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00088 in standard form

    Answer: 8.8 × 10-4
  2. 2. Algebra

    Factorise: x² + 3x - 54

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

    Adjacent = 14cm, angle = 48°. Find opposite. Give your answer to 2 decimal places

    Answer: 15.55cm
  4. 4. Ratio

    £182.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £104.00
  5. 5. Statistics

    The mean of 4 numbers is 29. If 3 of them are 47, 35, 27, what is the missing number?

    Answer: 7

Wednesday 18 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.05 in standard form

    Answer: 5 × 10-2
  2. 2. Algebra

    Factorise: x² + 2x - 15

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

    Adjacent = 25cm, angle = 59°. Find opposite. Give your answer to 2 decimal places

    Answer: 41.61cm
  4. 4. Ratio

    Simplify the ratio £7 : 80p

    Answer: 35:4
  5. 5. Statistics

    The mean of 5 numbers is 28. If 4 of them are 22, 30, 18, 30, what is the missing number?

    Answer: 40

Thursday 19 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 36,000,000 in standard form

    Answer: 3.6 × 107
  2. 2. Algebra

    Factorise: x² - x - 2

    Answer: (x + 1)(x - 2)
  3. 3. Geometry

    Hypotenuse = 38cm, angle = 47°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 25.92cm
  4. 4. Ratio

    Simplify the ratio kg : 850g

    Answer: 20:17
  5. 5. Statistics

    Calculate the mean of: 43, 20, 50, 39, 30, 43, 47, 41. Give your answer to 2 decimal places

    Answer: 39.13

Friday 20 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000044 in standard form

    Answer: 4.4 × 10-5
  2. 2. Algebra

    Factorise: x² + 6x - 55

    Answer: (x + 11)(x - 5)
  3. 3. Geometry

    Adjacent = 20cm, angle = 56°. Find opposite. Give your answer to 2 decimal places

    Answer: 29.65cm
  4. 4. Ratio

    Black, white and yellow counters are in the ratio 12:12:3. What fraction of the counters are yellow?

    Answer: 1⁄9
  5. 5. Statistics

    The mean of 4 numbers is 35. If 3 of them are 26, 50, 38, what is the missing number?

    Answer: 26