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Lintel Sep 30 - Oct 6 25 questions
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Monday 30 September 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0029 in standard form

    Answer: 2.9 × 10-3
  2. 2. Algebra

    Factorise: x² + 5x - 50

    Answer: (x + 10)(x - 5)
  3. 3. Geometry

    Adjacent = 17cm, angle = 45°. Find opposite

    Answer: 17cm
  4. 4. Ratio

    Simplify: 12:10:6

    Answer: 6:5:3
  5. 5. Statistics

    Calculate the mean of: 23, 29, 45, 33, 39, 21. Give your answer to 2 decimal places

    Answer: 31.67

Tuesday 1 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00067 in standard form

    Answer: 6.7 × 10-4
  2. 2. Algebra

    Factorise: x² + 5x - 36

    Answer: (x + 9)(x - 4)
  3. 3. Geometry

    Adjacent = 29cm, angle = 51°. Find opposite. Give your answer to 2 decimal places

    Answer: 35.81cm
  4. 4. Ratio

    Divide 55 in the ratio 1:3:1

    Answer: 11, 33 and 11
  5. 5. Statistics

    The mean of 4 numbers is 33. If 3 of them are 42, 20, 22, what is the missing number?

    Answer: 48

Wednesday 2 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 34,000,000 in standard form

    Answer: 3.4 × 107
  2. 2. Algebra

    Factorise: x² + x - 30

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

    Hypotenuse = 26cm, angle = 39°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 20.21cm
  4. 4. Ratio

    Orange and purple beads are in the ratio 4:13. What fraction of the beads are orange?

    Answer: 4⁄17
  5. 5. Statistics

    The mean of 5 numbers is 32. If 4 of them are 38, 44, 30, 32, what is the missing number?

    Answer: 16

Thursday 3 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.073 in standard form

    Answer: 7.3 × 10-2
  2. 2. Algebra

    Factorise: x² - 10x - 11

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

    Adjacent = 18cm, angle = 53°. Find opposite. Give your answer to 2 decimal places

    Answer: 23.89cm
  4. 4. Ratio

    Express the first part of 15:13 as a fraction in simplest form

    Answer: 15⁄28
  5. 5. Statistics

    Calculate the mean of: 31, 39, 26, 29, 44, 16, 20. Give your answer to 2 decimal places

    Answer: 29.29

Friday 4 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000021 in standard form

    Answer: 2.1 × 10-5
  2. 2. Algebra

    Factorise: x² + 12x + 20

    Answer: (x + 10)(x + 2)
  3. 3. Geometry

    Adjacent = 30cm, angle = 58°. Find opposite. Give your answer to 2 decimal places

    Answer: 48.01cm
  4. 4. Ratio

    £210.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £120.00
  5. 5. Statistics

    The mean of 4 numbers is 32. If 3 of them are 21, 30, 23, what is the missing number?

    Answer: 54