The value of a machine every year by 20% if the present population is 54000 what was it a year ago
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⇒125 units = 10000
⇒1 unit = 80
⇒64 units = 5120
⇒ Population at the beginning of Ist Year = 5120
⇒1 unit = 80
⇒64 units = 5120
⇒ Population at the beginning of Ist Year = 5120
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