The world population in the year 1960 was 3 billion, consider the growth rate of 1.5 %. The world population in the year 2022 is expected to bea.8.7 millionb.2 billionc.3.3 billiond.10 billion
Question
The world population in the year 1960 was 3 billion, consider the growth rate of 1.5 %. The world population in the year 2022 is expected to bea.8.7 millionb.2 billionc.3.3 billiond.10 billion
Solution
To solve this problem, we need to use the formula for exponential growth, which is:
P = P0 * (1 + r)^t
where: P is the future population, P0 is the initial population, r is the growth rate, and t is the time in years.
Given in the problem: P0 = 3 billion, r = 1.5% = 0.015 (in decimal form), and t = 2022 - 1960 = 62 years.
Substituting these values into the formula, we get:
P = 3 * (1 + 0.015)^62
Calculating this gives us a population of approximately 7.8 billion.
However, none of the options provided (8.7 million, 2 billion, 3.3 billion, 10 billion) match this result. There may be a mistake in the question or the provided options.
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By 2050, the earth is projected to have a population betweenMultiple Choice8 and 10 billion.7 and 8 billion.8 and 9 billion.10 and 12 billion.
Estimate the number of people in the world.
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