The population of a village is 20,000. If the birth rate is 5% p.a. and death rate is 3% p.a., find the population after 2 years.
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Step-by-step explanation:
The population of a village is 20,000. If the birth rate is 5% p.a. and death rate is 3% p.a., find the population after 2 years.
no. of people born in a year = 5 % of 20000
=> 5 *20000/100
=>1000
no . of people dying (per annum) = 3 % of 20000
=> 3 *20000/100
=> 600
so population increased = 1000 - 600
= 400
so the population after 2 years => 20000 + 2(400)
=> 20800
:0
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