The population of a town increases by 8% annually. If the present population is 142560,what was it a year ago?
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Step-by-step explanation:
Method - 1:
Let the population of the town a year ago = 'x'.
Given that it increases by 8%. Its present population is 142560.
= > x + 8% of x = 142560
= > x + (8x/100) = 142560
= > 100x + 8x = 142560 * 100
= > 108x = 14256000
= > x = 14256000/108
= > x = 132000.
Therefore, population of the town a year ago = 132000
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