5.25

 程序流程图：

#include<bits/stdc++.h>
using namespace std;
main()
{
    int x, y, z, num=0;
    printf(" Men Women Children\n");
    for(x=0;x<=10;x++)
    {
        y=20-2*x;
        z=30-x-y;
        if(3*x+2*y+z == 50)
            printf("%2d:%4d%5d%6d\n", ++num,x,y,z);
    }
}