Question

Study the given table and answer the question that follow:

Doubling Time of World Population
Period	Population	Time in which Population Doubles
10,000 B.C.	5 million
1650 A.D.	500 million	1500 years
1804 A.D.	1,000 million	154 years
1927 A.D.	2,000 million	123 years
1974 A.D.	4,000 million	47 years
2025 A.D.	8,000 million projected figure	51 years

How long did it take for the population to reach 1000 million to 4000 million?

पर्याय

• 123 years

• 170 years

• 277 years

• 221 years

Answer 1

170 years