In a certain company, the ratio of managers to production line workers is 5 to 72. If 8 additional production line workers were to be hired , the ratio of managers to workers would be 5 to 74. How many managers does the company have?
I don't know how to solve this type of ratio problem, any suggestions?
5x/(72x + 8 ) = 5/74
Solving for x gives 4. So answer is 20