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Lintel Mar 7 - 13 25 questions
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Monday 7 March 2011

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 - 23x + 132

    Answer: (x - 11)(x - 12)
  3. 3. Geometry

    Adjacent = 28cm, angle = 39°. Find opposite. Give your answer to 2 decimal places

    Answer: 22.67cm
  4. 4. Ratio

    £246.00 is shared between A and B in the ratio 1:2. How much does A receive?

    Answer: £82.00
  5. 5. Statistics

    Calculate the mean of: 32, 12, 17, 14, 21, 11, 27, 31. Give your answer to 2 decimal places

    Answer: 20.63

Tuesday 8 March 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.097 in standard form

    Answer: 9.7 × 10-2
  2. 2. Algebra

    Factorise: x² - 4x - 45

    Answer: (x + 5)(x - 9)
  3. 3. Geometry

    Adjacent = 25cm, angle = 52°. Find opposite. Give your answer to 2 decimal places

    Answer: 32cm
  4. 4. Ratio

    Simplify the ratio 3 hours : 25 minutes

    Answer: 36:5
  5. 5. Statistics

    Calculate the mean of: 44, 16, 19, 11, 38, 18, 33, 22. Give your answer to 2 decimal places

    Answer: 25.13

Wednesday 9 March 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 400,000 in standard form

    Answer: 4 × 105
  2. 2. Algebra

    Factorise: x² - x - 30

    Answer: (x + 5)(x - 6)
  3. 3. Geometry

    Hypotenuse = 17cm, angle = 47°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 11.59cm
  4. 4. Ratio

    Simplify the ratio £4 : 85p

    Answer: 80:17
  5. 5. Statistics

    The mean of 5 numbers is 38. If 4 of them are 27, 21, 44, 48, what is the missing number?

    Answer: 50

Thursday 10 March 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 260,000 in standard form

    Answer: 2.6 × 105
  2. 2. Algebra

    Factorise: x² - 7x - 8

    Answer: (x + 1)(x - 8)
  3. 3. Geometry

    Adjacent = 15cm, angle = 60°. Find opposite. Give your answer to 2 decimal places

    Answer: 25.98cm
  4. 4. Ratio

    Simplify the ratio 2m : 95cm

    Answer: 40:19
  5. 5. Statistics

    The mean of 4 numbers is 30. If 3 of them are 40, 23, 20, what is the missing number?

    Answer: 37

Friday 11 March 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000082 in standard form

    Answer: 8.2 × 10-5
  2. 2. Algebra

    Factorise: x² - 10x - 11

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

    Hypotenuse = 33cm, angle = 60°. Find adjacent side

    Answer: 16.5cm
  4. 4. Ratio

    Red, blue and green beads are in the ratio 2:2:10. What fraction of the beads are red?

    Answer: 1⁄7
  5. 5. Statistics

    Calculate the mean of: 14, 9, 28, 26, 46, 7, 34. Give your answer to 2 decimal places

    Answer: 23.43