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Lintel Sep 5 - 11 25 questions
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Monday 5 September 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.085 in standard form

    Answer: 8.5 × 10-2
  2. 2. Algebra

    Factorise: x² - 4x - 32

    Answer: (x + 4)(x - 8)
  3. 3. Geometry

    Hypotenuse = 30cm, angle = 44°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 21.58cm
  4. 4. Ratio

    £240.00 is shared between A and B in the ratio 5:3. How much does A receive?

    Answer: £150.00
  5. 5. Statistics

    Calculate the mean of: 41, 44, 23, 6, 33, 18, 6. Give your answer to 2 decimal places

    Answer: 24.43

Tuesday 6 September 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 7,900,000 in standard form

    Answer: 7.9 × 106
  2. 2. Algebra

    Factorise: x² - 3x - 18

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

    Adjacent = 19cm, angle = 34°. Find opposite. Give your answer to 2 decimal places

    Answer: 12.82cm
  4. 4. Ratio

    Simplify the ratio 3kg : 350g

    Answer: 60:7
  5. 5. Statistics

    Calculate the mean of: 47, 10, 42, 35, 18, 37, 27. Give your answer to 2 decimal places

    Answer: 30.86

Wednesday 7 September 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000093 in standard form

    Answer: 9.3 × 10-5
  2. 2. Algebra

    Factorise: x² - x - 20

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

    Hypotenuse = 39cm, angle = 53°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 23.47cm
  4. 4. Ratio

    Black, white and yellow sweets are in the ratio 8:4:12. What fraction of the sweets are black?

    Answer: 1⁄3
  5. 5. Statistics

    The mean of 5 numbers is 26. If 4 of them are 20, 30, 31, 30, what is the missing number?

    Answer: 19

Thursday 8 September 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0074 in standard form

    Answer: 7.4 × 10-3
  2. 2. Algebra

    Factorise: x² + 8x - 48

    Answer: (x + 12)(x - 4)
  3. 3. Geometry

    Hypotenuse = 16cm, angle = 28°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.13cm
  4. 4. Ratio

    Orange, purple and pink counters are in the ratio 5:9:12. What fraction of the counters are pink?

    Answer: 6⁄13
  5. 5. Statistics

    The mean of 4 numbers is 26. If 3 of them are 17, 36, 46, what is the missing number?

    Answer: 5

Friday 9 September 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 1,400,000 in standard form

    Answer: 1.4 × 106
  2. 2. Algebra

    Factorise: x² + 2x - 8

    Answer: (x + 4)(x - 2)
  3. 3. Geometry

    Adjacent = 14cm, angle = 41°. Find opposite. Give your answer to 2 decimal places

    Answer: 12.17cm
  4. 4. Ratio

    Black, white and yellow marbles are in the ratio 12:8:12. What fraction of the marbles are yellow?

    Answer: 3⁄8
  5. 5. Statistics

    Calculate the mean of: 28, 38, 32, 32, 23, 15

    Answer: 28