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Lintel Apr 11 - 17 25 questions
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Monday 11 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 140,000,000 in standard form

    Answer: 1.4 × 108
  2. 2. Algebra

    Factorise: x² - 5x - 6

    Answer: (x + 1)(x - 6)
  3. 3. Geometry

    Hypotenuse = 20cm, angle = 49°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.12cm
  4. 4. Ratio

    £360.00 is shared between A and B in the ratio 3:5. How much does A receive?

    Answer: £135.00
  5. 5. Statistics

    The mean of 5 numbers is 37. If 4 of them are 34, 50, 49, 37, what is the missing number?

    Answer: 15

Tuesday 12 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0036 in standard form

    Answer: 3.6 × 10-3
  2. 2. Algebra

    Factorise: x² - 7x - 18

    Answer: (x + 2)(x - 9)
  3. 3. Geometry

    Adjacent = 17cm, angle = 41°. Find opposite. Give your answer to 2 decimal places

    Answer: 14.78cm
  4. 4. Ratio

    In ratio 11:10:4, what fraction is the second part?

    Answer: 2⁄5
  5. 5. Statistics

    The mean of 4 numbers is 29. If 3 of them are 27, 21, 41, what is the missing number?

    Answer: 27

Wednesday 13 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 290,000,000 in standard form

    Answer: 2.9 × 108
  2. 2. Algebra

    Factorise: x² + 7x - 60

    Answer: (x + 12)(x - 5)
  3. 3. Geometry

    Hypotenuse = 23cm, angle = 63°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 10.44cm
  4. 4. Ratio

    £250.00 is shared between A and B in the ratio 3:2. How much does A receive?

    Answer: £150.00
  5. 5. Statistics

    Calculate the mean of: 41, 39, 6, 27, 28, 41, 9, 16. Give your answer to 2 decimal places

    Answer: 25.88

Thursday 14 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 8,800,000 in standard form

    Answer: 8.8 × 106
  2. 2. Algebra

    Factorise: x² + 8x + 12

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

    Hypotenuse = 39cm, angle = 43°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 28.52cm
  4. 4. Ratio

    Divide 144 in the ratio 4:1:1

    Answer: 96, 24 and 24
  5. 5. Statistics

    The mean of 6 numbers is 28. If 5 of them are 25, 28, 33, 38, 20, what is the missing number?

    Answer: 24

Friday 15 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.025 in standard form

    Answer: 2.5 × 10-2
  2. 2. Algebra

    Factorise: x² + 7x - 30

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

    Adjacent = 14cm, angle = 39°. Find opposite. Give your answer to 2 decimal places

    Answer: 11.34cm
  4. 4. Ratio

    Divide 144 in the ratio 1:2:3

    Answer: 24, 48 and 72
  5. 5. Statistics

    Calculate the mean of: 10, 47, 47, 34, 20, 46, 44. Give your answer to 2 decimal places

    Answer: 35.43