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?

Question

Mathematics

Boston

31 October, 08:36

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?

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Clover · Answer 1

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