In Fig. 8.4, the comparative areas of the continents are given:


What is the ratio of the areas of


(a) Africa to Europe


(b) Australia to Asia


(c) Antarctica to Combined area of North America and South America.


By counting the number of squares under each continent we can get to know the areas as follows


Africa = 26 sq. units


Europe = 10 sq. units


Australia = 8 sq. units


Asia = 44 sq. units


Antarctica = 13 sq. units


North America = 17 sq. units


South America = 18 sq. units


(a) ratio of area of Africa to Europe = =


Divide numerator and denominator by 2 we get


ratio of area of Africa to Europe = = 13:5


(b) ratio of area of Australia to Asia = =


Divide numerator and denominator by 4 we get


ratio of area of Australia to Asia = = 2:11


(c) ratio of area of Antarctica to combined area of North America and South America = = = = 13:35


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