1 Activities | Logic Q's | Estimation Q's IntellectualLoafing.com Complete List of Pages
US Pet Food Spend | Index

Australia's Annual Carrier Bag Use

How many people die in the US each day? This question is not here to be morbid, but to give a sense of reality.

How many carrier bags are used in Australia each year?

Jump to the clue

Jump to the answer

 

 

 

 

 

 

 

 

  

 

Estimate the number of carrier bags used per person per week (or indeed by you per week) and multiply up to find the corresponding value per year for Australia.

Jump to the answer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

6.9 Billion = 6,900,000,000

(Australia's Minister for Environment and Heritage Dr David Kemp.)

 

My Answer: 3 Billion

Assume:

1) Population of Australia is 20 million (It's actually a little bit less)

2) Average no. of carrier bags used per person is 6 per week. (This is clearly a guess, but not unreasonable: four for food and two for clothes and other purchases. (Note that I have estimated the no. used per week. It is far easier to guess the number per week and multiply up than to guess the number used per year)

 

Therefore,

Annual use of carrier bags in Australia =

Population of Australia * No. of carrier bags used per person per weeks * number of weeks in a year

= 20 million * 6 * 52

= ~ 6,000,000,000  = 6 Billion

 

Comparison of answers

My answer is a little below the actual figure of 6.9 billion which corresponds to a figure for no. of carrier bags used per person per week of about 7 (or 350 per year).

Note: It seems that Australia's per person usage of carrier bags is high. In the UK each person only uses 134 per year (or 2.5 a week) and in Ireland 140 per year (although this is been recently reduced due to the introduction of a carrier bag tax.)

To see a range of stories on the environmental issues surrounding carrier bags including the recent introduction of disposable carrier bags visit the Environmental Data Interactive Exchange.

 

Return to the actual answer

 

 

There are clearly several "correct" answers to this question. If you have a different one (or a different question); e-mail it to WebMaster@IntellectualLoafing.com

top  

} Activities | Logic Q's | Estimation Q's Please send all comments to WebMaster@IntellectualLoafing.com
Wimbledon | Index