Question

population of i block of colony is 1000 in the beginning of july 2007 . it is increases at the rate of 5 % every six months, find the population of i block after 18 months

Answer 1

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Here your answer
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Total population in starting = 1000
$after \: 6 \: month \: population \\ \\ \: = 1000 + \frac{1000 \times 5}{100} \\ \\ \: = 1000 + 50 \\ \\ \: = 1050 \\ \\ \: after \: 12 \: month \: population \: \\ \\ \: = 1050 + \frac{1050 \times 5}{100} \\ \\ \: = 1050 + 52.5 \\ \\ \: = 1102.5 \\ \\ \: after \: 18 \: month \: population \\ \\ \: = 1102.5 + \frac{1102.5 \times 5}{100} \\ \\ \: = 1102.5 + 55.125 \\ \\ \: = 1157.625$