In 2017, the world's population was 7.451 billion people. Tge world growth rate is 1.13% annually, (a) what the projected world'
s population in 2035? (b) how long will it take for world's population to double? (c)how long will it take for world's population to triple?
1 answer:
A) Period 19 Years (if it started the 1st Jan 2017 & ended the 31st Dec 2035)
A=P(1+r%)^n
A=7.451(1+1.13%)^19 = 9.259 Billion
b) 14.902 = 7.451(1+1.13%)^n
You will find n≈20 year (through log)
c) to triple 22.353=7.451(1+1.13%)^n, Same logique
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