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شائع Word Problems >

the population of a city has increased by 24% since it was last measured. If the current population is 27,900, what was the previous population?

الحلّ

t h e p o p u l a t i o n o f a c i t y ha s in cre a se d b y 24% s in ce i t w a s l a s t m e a s u re d . I f t h e c u rre n t p o p u l a t i o n i s 27, 900, w ha t w a s t h e p re v i o u s p o p u l a t i o n ?

الحلّ

Amount before addition : 22500

خطوات الحلّ

Translate the problem into an equation:

27900 = x + 0.24 x

27900 = x + 0.24 x : x = 22500

Amount before addition : 22500

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