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Question 10

A diagram has circles such that the area represents the populations of various
countries in the world. The circle for United States has a radius of 4.2 cm and the circle
for India has a radius of 8.7 cm. If 4% of the world's population is in United States, what
percentage of the world's population is in India? Round to the nearest percent.

1 Answer

4 votes

Answer:

17%

Explanation:

area represents the populations

United States has a radius of 4.2 cm and

India has a radius of 8.7 cm.

If 4% of the world's population is in United States,

what percentage of the world's population is in India

US π r² = π*4.2²

India π r² = π*8.7²

so india/US = 4.29

so india = 4.29 *4% = 17%

User Sylvestre
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