the present population of a country estimated yo be 10 crores is expected to increase to 13.31 crores during the next 3 years the uniform rate of growth is?
Answers
Answered by
19
13.31 = 10(1+r/100)^3
13.31/10 = (1+r/100)^3
=> 1331/1000 = (1+r/100)^3
=> (11/10)^3 = (1+r/100)^3
=> 1+r/100 = 11/10
=> r = 10%
Therefore, the rate of annual population growth is 10%. Use the same formula as of Compound Interest ;)
13.31/10 = (1+r/100)^3
=> 1331/1000 = (1+r/100)^3
=> (11/10)^3 = (1+r/100)^3
=> 1+r/100 = 11/10
=> r = 10%
Therefore, the rate of annual population growth is 10%. Use the same formula as of Compound Interest ;)
Answered by
6
Uniform rate of growth = 10 % if population increased in 3 years from 10 crore to 13.31 crore
Step-by-step explanation:
the present population of a country estimated to be 10 crores
Present population = 10 crore
population of a country is expected to increase to 13.31 crores during the next 3 years
Population after 3 Years = 13.31 crores
Time = 3 Years
Let say Uniform Rate of Growth = R % per annum
Population after 3 Year = Present Population * (1 + R/100)³
=> 13.31 = 10 * (1 + R/100)³
=> 1.331 = (1 + R/100)³
=> 1.1³ = (1 + R/100)³
=> 1 + R/100 = 1.1
=> R/100 = 0.1
=> R = 10
Uniform rate of growth = 10 %
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