Questions & Answers
Browse all 25 questions from the
Geographic Algebra study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
If the land area of Australia is approximately 7.7 million km² and the land area of Brazil is 8.5 million km², what is the difference in square kilometers?
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A
0.8 million
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B
1.2 million
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C
0.5 million
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D
1.5 million
2
The distance between Tokyo and Sydney is roughly 7,800 km. If a plane travels at 600 km/h, what is the travel time in hours?
3
The Nile River is approximately 6,650 km long, and the Amazon River is 6,400 km long. What is the total length of both rivers combined?
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A
12,050 km
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B
13,050 km
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C
13,150 km
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D
12,950 km
4
If a country has a population of 50 million and a land area of 500,000 km², what is the population density (people per km²)?
5
Mount Everest is 8,848 meters high and Mount K2 is 8,611 meters high. Calculate the height difference in meters.
6
If 1,000 km is approximately 621 miles, how many miles is 5,000 km?
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A
3,105
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B
3,005
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C
3,205
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D
3,115
7
The surface area of the Earth is 510 million km², and the ocean covers 361 million km². What is the land area?
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A
149 million km²
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B
159 million km²
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C
169 million km²
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D
139 million km²
8
If the time difference between two cities is 3 hours, and it is 12:00 PM in the eastern city, what time is it in the western city?
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A
8:00 AM
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B
9:00 AM
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C
10:00 AM
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D
11:00 AM
9
The world population in 2023 was roughly 8 billion. If it grows by 0.8% annually, what is the approximate increase in millions after one year?
10
If the average temperature in a city in January is 10°C and it increases by 2°C each month for 5 months, what is the temperature in June?
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A
18°C
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B
20°C
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C
22°C
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D
24°C
11
The Great Barrier Reef is 2,300 km long. If a boat travels 230 km per day, how many days will it take to traverse the length?
12
If the ratio of land to water in a region is 1:3 and the total area is 400 km², how many square kilometers is the land?
13
A country's GDP is $500 billion, and its population is 20 million. What is the GDP per capita?
-
A
$20,000
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B
$25,000
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C
$30,000
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D
$35,000
14
If the latitude of the Equator is 0° and the Tropic of Cancer is 23.5° N, what is the angular difference between them?
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A
23.5°
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B
47°
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C
11.75°
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D
66.5°
15
A desert covers 9 million km², which is 6% of the Earth's land area (149 million km²). Which desert is this?
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A
Gobi
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B
Sahara
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C
Arabian
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D
Kalahari
16
If a flight lasts 8 hours and covers 7,200 km, what is the average speed of the plane?
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A
800 km/h
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B
900 km/h
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C
1,000 km/h
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D
1,100 km/h
17
The Arctic Circle is at 66.5° N. What is the latitude of the Antarctic Circle?
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A
66.5° S
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B
23.5° S
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C
45° S
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D
90° S
18
If 1 hectare equals 0.01 km², how many hectares are in 5 km²?
-
A
50
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B
500
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C
5,000
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D
50,000
19
A city has 2 million cars. If 1/4 of them are electric, how many electric cars are there?
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A
250,000
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B
500,000
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C
750,000
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D
1,000,000
20
If the distance around the Equator is 40,075 km, what is the distance of a semicircle?
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A
20,037.5 km
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B
20,075 km
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C
19,037.5 km
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D
21,037.5 km
21
If a country has 500 islands and 20% are inhabited, how many islands are inhabited?
22
A mountain range extends 1,500 km. If it is mapped at a scale where 1 cm = 50 km, how long is the range on the map?
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A
20 cm
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B
30 cm
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C
40 cm
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D
50 cm
23
If the depth of a trench is 10,000 meters and the height of a nearby mountain is 5,000 meters, what is the vertical span?
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A
5,000 m
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B
10,000 m
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C
15,000 m
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D
20,000 m
24
The volume of water in a lake is 500 km³. If 50 km³ evaporates, what percentage of the original volume remains?
25
If a region receives 1,200 mm of rain annually, what is the average monthly rainfall in mm?
