Answer :
Final answer:
The system of equations needs to be solved to find the number of men, women, and children based on the given conditions.
Explanation:
Let's denote the number of men as x, women as y, and children as z.
The system of equations based on the given information is:
- x + y + z = 30
- x + y = 2z
- x + 3y = 2z + 20
Solving this system of equations will help find the values of x, y, and z, representing the number of men, women, and children, respectively.
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