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Lintel Apr 25 - May 1 25 questions
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Monday 25 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.091 in standard form

    Answer: 9.1 × 10-2
  2. 2. Algebra

    Factorise: x² - x - 12

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

    Adjacent = 28cm, angle = 42°. Find opposite. Give your answer to 2 decimal places

    Answer: 25.21cm
  4. 4. Ratio

    In ratio 3:7:9, what fraction is the third part?

    Answer: 9⁄19
  5. 5. Statistics

    The mean of 6 numbers is 36. If 5 of them are 50, 47, 25, 19, 27, what is the missing number?

    Answer: 48

Tuesday 26 April 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 - 9x + 20

    Answer: (x - 4)(x - 5)
  3. 3. Geometry

    Hypotenuse = 21cm, angle = 51°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.22cm
  4. 4. Ratio

    In ratio 9:8:7, what fraction is the second part?

    Answer: 1⁄3
  5. 5. Statistics

    The mean of 5 numbers is 36. If 4 of them are 16, 28, 39, 46, what is the missing number?

    Answer: 51

Wednesday 27 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00064 in standard form

    Answer: 6.4 × 10-4
  2. 2. Algebra

    Factorise: x² + 3x - 70

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

    Adjacent = 19cm, angle = 57°. Find opposite. Give your answer to 2 decimal places

    Answer: 29.26cm
  4. 4. Ratio

    Simplify the ratio 1 litre : 600 ml

    Answer: 5:3
  5. 5. Statistics

    Calculate the mean of: 44, 34, 38, 28, 18, 18, 10. Give your answer to 2 decimal places

    Answer: 27.14

Thursday 28 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.029 in standard form

    Answer: 2.9 × 10-2
  2. 2. Algebra

    Factorise: x² + 4x - 12

    Answer: (x + 6)(x - 2)
  3. 3. Geometry

    Adjacent = 19cm, angle = 38°. Find opposite. Give your answer to 2 decimal places

    Answer: 14.84cm
  4. 4. Ratio

    £252.00 is shared between A and B in the ratio 2:5. How much does A receive?

    Answer: £72.00
  5. 5. Statistics

    Calculate the mean of: 23, 7, 15, 48, 20, 35, 27, 24. Give your answer to 2 decimal places

    Answer: 24.88

Friday 29 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 6,300,000 in standard form

    Answer: 6.3 × 106
  2. 2. Algebra

    Factorise: x² + 10x - 11

    Answer: (x + 11)(x - 1)
  3. 3. Geometry

    Hypotenuse = 24cm, angle = 57°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.07cm
  4. 4. Ratio

    Black, white and yellow counters are in the ratio 4:2:10. What fraction of the counters are yellow?

    Answer: 5⁄8
  5. 5. Statistics

    The mean of 6 numbers is 31. If 5 of them are 39, 29, 32, 16, 49, what is the missing number?

    Answer: 21