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The population of a town increase by 12% every year. If the present population of the town is 86800, then what was the population of the town last year?

The population of a town increase by 12% every year. If the present population of the town is 86800, then what was the population of the town last year? Correct Answer 77500

Calculation:

Let, population last year = y

According to problem,

⇒ y + y × 12/100 = 86800

⇒ 1.12y = 86800

⇒ y = 86800/1.12

⇒ y = 77500

∴ Population last year = 77500.

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