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Lintel Apr 1 - 7 25 questions
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Monday 1 April 2013

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 - 10x + 9

    Answer: (x - 1)(x - 9)
  3. 3. Geometry

    Adjacent = 28cm, angle = 45°. Find opposite

    Answer: 28cm
  4. 4. Ratio

    Orange, purple and pink marbles are in the ratio 3:11:7. What fraction of the marbles are orange?

    Answer: 1⁄7
  5. 5. Statistics

    Calculate the mean of: 5, 41, 46, 48, 39, 35, 6. Give your answer to 2 decimal places

    Answer: 31.43

Tuesday 2 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 4,100,000 in standard form

    Answer: 4.1 × 106
  2. 2. Algebra

    Factorise: x² + 14x + 45

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

    Hypotenuse = 24cm, angle = 43°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 17.55cm
  4. 4. Ratio

    In ratio 6:4:8, what fraction is the third part?

    Answer: 4⁄9
  5. 5. Statistics

    Calculate the mean of: 20, 35, 43, 18, 10, 19. Give your answer to 2 decimal places

    Answer: 24.17

Wednesday 3 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.092 in standard form

    Answer: 9.2 × 10-2
  2. 2. Algebra

    Factorise: x² - 3x - 28

    Answer: (x + 4)(x - 7)
  3. 3. Geometry

    Adjacent = 26cm, angle = 53°. Find opposite. Give your answer to 2 decimal places

    Answer: 34.5cm
  4. 4. Ratio

    £208.00 is shared between A and B in the ratio 5:3. How much does A receive?

    Answer: £130.00
  5. 5. Statistics

    The mean of 5 numbers is 38. If 4 of them are 29, 19, 25, 50, what is the missing number?

    Answer: 67

Thursday 4 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00091 in standard form

    Answer: 9.1 × 10-4
  2. 2. Algebra

    Factorise: x² + 3x - 18

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

    Adjacent = 11cm, angle = 41°. Find opposite. Give your answer to 2 decimal places

    Answer: 9.56cm
  4. 4. Ratio

    Divide 78 in the ratio 2:3:1

    Answer: 26, 39 and 13
  5. 5. Statistics

    Calculate the mean of: 37, 45, 25, 14, 37, 34, 48. Give your answer to 2 decimal places

    Answer: 34.29

Friday 5 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 2,400,000 in standard form

    Answer: 2.4 × 106
  2. 2. Algebra

    Factorise: x² - 5x - 66

    Answer: (x + 6)(x - 11)
  3. 3. Geometry

    Hypotenuse = 37cm, angle = 62°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 17.37cm
  4. 4. Ratio

    Express the second part of 2:10 as a fraction in simplest form

    Answer: 5⁄6
  5. 5. Statistics

    The mean of 4 numbers is 34. If 3 of them are 27, 50, 38, what is the missing number?

    Answer: 21