In a Certain Country There Are Currently 125 Million Workers

In a certain country there are currently 125 million workers and 50 million retired people. The population of workers is decreasing according to the formula , where t is in years and W is in millions. The population of retired people is increasing according to the formula , where t is in years and R is in millions. In how many years will the number of workers equal the number of retired people?

A) 13.1 years
B) 14.1 years
C) 5.3 years
D) 10.8 years

Correct Answer:

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