Engineering Board Exam Reviewer · Word Problems: Systems of Equations · medium
A professional organization is composed of x ECEs and 2x EEs. If 6 ECEs are replaced by 6 EEs, 1/6 of the members will be ECEs. Solve for x.
- 12
- 24
- 36
- 1
Answer
A. 12
Solution
Let x=ECEs, 2x=EEs (3x total members). After replacing 6 ECEs with 6 EEs: (x-6)=1/6(3x), giving x=12.
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