Question

the population of a town is 1000 in a certain year. it increase at the rate 15% in the first year and 10% in the second year. find net growth in 2year
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Answer 1

Answer:

The net growth in 2 years = 265.

Step-by-step explanation:

Given,

Present population of a town(P) = 1000

Rate of increase for first year (R1) = 15%

Rate of increase for second year (R2) = 10%

Thus,

Population after 2 years (P2) = P * {1+(R1/100)}*{1+(R2/100)}

=> P2 = 1000 * {1+(15/100)}*{1+(10/100)}

=> P2 = 1000 * (115/100)*(110/100)

=>P2 = 1265

Hence, Net Growth of Population in 2 years = P2-P1 = 1265 -1000 = 265