Question

The population of a city is 4786000 in 1980. In 1990 the population had increased by 1.5%. What was the population in the year 2000 if it increased a further 1.2% from 1990 (in whole people)?

Answers

  1. Answer:
    4 916 083
    Step-by-step explanation:
    population in 1990
    1.5 : 100 = x : 4 786 000
    x = 1.5 · 4 786 000 / 100
    x = 1.5 · 47 860
    x = 71 790
    4 786 000 + 71 790 = 4 857 790
    population in 2000
    1.2 : 100 = x : 4 857 790
    x = 1.2 · 4 857 790 / 100
    x = 0.012 · 4 857 790
    x = 58 293.48
    4 857 790 + 58 293.48 = 4 916 083.48

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