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Question
Identify of the two ratios is larger?
1 : 2 or 2 : 1
Sum
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Solution
1 : 2 or 2 : 1
1 : 2 = `1/2`
2 : 1 = `2/1`
= 2
`2/1 > 1/2`
2 : 1 > 1 : 2
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Chapter 3: Ratio and Proportion - Exercise 3.2 [Page 55]
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The table lists the world’s 10 largest deserts.
| Largest Deserts in the World | |
| Desert | Area (km2) |
| Sahara (Africa) | 8,800,000 |
| Gobi (Asia) | 1,300,000 |
| Australian Desert (Australia) | 1,250,000 |
| Arabian Desert (Asia) | 850,000 |
| Kalahari Desert (Africa) | 580,000 |
| Chihuahuan Desert (North America) | 370,000 |
| Takla Makan Desert (Asia) | 320,000 |
| Kara Kum (Asia) | 310,000 |
| Namib Desert (Africa) | 310,000 |
| Thar Desert (Asia) | 260,000 |
- What are the mean, median and mode of the areas listed?
- How many times the size of the Gobi Desert is the Namib Desert?
- What percentage of the deserts listed are in Asia?
- What percentage of the total area of the deserts listed is in Asia?
