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The population of a town increases by 8% annually. If the present population is 54000, what was it a year ago? |
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Answer» Let population of the town a year ago = Z ∴ Present population = 108% of Z ⇒ 54000 = Z × 108/100 ⇒ 54000 = Z × 27/25 ⇒ Z = 54000 × 25/27 ⇒ Z = 2000 × 25 ⇒ Z = 50000 |
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