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Popular Word Problems >

The population of a city decreases by 3.9% per year. If this year's population is 200,000, what will next year's population be, to the nearest individual?

Solution

T h e p o p u l a t i o n o f a c i t y d ecre a ses b y 3.9% p er ye a r . I f t hi s ye a r^{'} s p o p u l a t i o n i s 200, 000, w ha t w i ll n e x t ye a r^{'} s p o p u l a t i o n b e, t o t h e n e a res t in d i v i d u a l ?

Solution

Amount after reduction : 192200

Solution steps

Translate the problem into an equation:

x = 200000 - 0.039 \cdot 200000

x = 200000 - 0.039 \cdot 200000 : x = 192200

Amount after reduction : 192200

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