Oceans

The Earth's surface is approximately 510,000,000 km2 and is 7/10 covered by oceans. Of which 1/2 covers the Pacific Ocean, the Atlantic Ocean 1/4, the Indian Ocean 1/5 and the Arctic Ocean 1/20. What parts of the Earth's surface cover each ocean?

Correct result:

T =  178500000 km2
A =  89250000 km2
I =  71400000 km2
L =  17850000 km2

Solution:


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