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Phổ biến Word Problems >

The population of a city has increased by 33% since it was last measured. If the current population is 39900, what was the previous population?

Lời Giải

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 33% 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 39900, 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 ?

Lời Giải

Amount before addition : 30000

Các bước giải pháp

Translate the problem into an equation:

39900 = x + 0.33 x

39900 = x + 0.33 x : x = 30000

Amount before addition : 30000

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