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In 1970 the population of a town A and town B were same from 1970 to 1980,however the population of town A increased by 60% while the population of town B decreased by 60%.In 1980,the population of town B was what percent of the population of town A?

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A = 1.6 p
B = .4 p

B/A = .4/1.6 = .25
25%

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