Question

In the following figure, the comparative areas of the continents are given: What is the ratio of the areas of

1. Africa to Europe
2. Australia to Asia
3. Antarctica to Combined area of North America and South America.

Answer 1

Area of North America = 17 sq.units

Area of Europe = 10 sq.units

Area of South America = 18 sq.units

Area of Africa = 26 sq.units

Area of Asia = 44 sq.units

Area of Australia = 8 sq.units

Area of Antarctica = 13 sq.units

a. Ratio of area of Africa to Europe = `26/10`

= `13/5`  ...[On dividing numerator and denominator by 2]

= 13 : 5

b. Ratio of area of Australia to Asia = `8/44`

= `2/11` ...[On dividing numerator and denominator by 4]

= 2 : 11 

c. Ratio of  Antarctica to combined area of North America and South America = `13/(17 + 18)`

= `13/35`

= 13 : 35