Change pack
Lintel Mar 29 - Apr 4 25 questions
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Monday 29 March 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 82,000,000 in standard form

    Answer: 8.2 × 107
  2. 2. Algebra

    Factorise: x² - 2x - 8

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

    Hypotenuse = 28cm, angle = 51°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 17.62cm
  4. 4. Ratio

    Black, white and yellow beads are in the ratio 9:2:9. What fraction of the beads are black?

    Answer: 9⁄20
  5. 5. Statistics

    Calculate the mean of: 38, 20, 25, 15, 36, 17, 26. Give your answer to 2 decimal places

    Answer: 25.29

Tuesday 30 March 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 640,000 in standard form

    Answer: 6.4 × 105
  2. 2. Algebra

    Factorise: x² + 5x - 14

    Answer: (x + 7)(x - 2)
  3. 3. Geometry

    Adjacent = 13cm, angle = 52°. Find opposite. Give your answer to 2 decimal places

    Answer: 16.64cm
  4. 4. Ratio

    £168.00 is shared between A and B in the ratio 5:2. How much does A receive?

    Answer: £120.00
  5. 5. Statistics

    Calculate the mean of: 27, 49, 20, 34, 7, 6, 41, 43. Give your answer to 2 decimal places

    Answer: 28.38

Wednesday 31 March 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000039 in standard form

    Answer: 3.9 × 10-5
  2. 2. Algebra

    Factorise: x² + 8x + 12

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

    Hypotenuse = 35cm, angle = 41°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 26.41cm
  4. 4. Ratio

    Simplify the ratio 3 hours : 15 minutes

    Answer: 12:1
  5. 5. Statistics

    The mean of 4 numbers is 37. If 3 of them are 41, 16, 40, what is the missing number?

    Answer: 51

Thursday 1 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 6,100,000 in standard form

    Answer: 6.1 × 106
  2. 2. Algebra

    Factorise: x² - 12x + 11

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

    Hypotenuse = 20cm, angle = 48°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.38cm
  4. 4. Ratio

    Divide 60 in the ratio 1:3:2

    Answer: 10, 30 and 20
  5. 5. Statistics

    The mean of 5 numbers is 27. If 4 of them are 27, 29, 29, 41, what is the missing number?

    Answer: 9

Friday 2 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0097 in standard form

    Answer: 9.7 × 10-3
  2. 2. Algebra

    Factorise: x² - 6x + 8

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

    Adjacent = 24cm, angle = 37°. Find opposite. Give your answer to 2 decimal places

    Answer: 18.09cm
  4. 4. Ratio

    Divide 84 in the ratio 1:1:2

    Answer: 21, 21 and 42
  5. 5. Statistics

    The mean of 5 numbers is 39. If 4 of them are 49, 17, 41, 40, what is the missing number?

    Answer: 48