Question Details

MODEL:

TITLE: SUSAN_WONG'S_PERSONAL_BUDGETING;

SETS:

Month/1..12/: m;

Surplus/1..12/: s;

Liability/1..12/: l;

Tool/1..3/: t;

Return(Month,Tool): x,y;

ENDDATA

DATA:

m= 6250 2450 2450 2450

2450 2450 2450 2450

2450 2450 2450 2450;

s= 3500 3090 3205 3535

4780 5630 5030 5180

5655 6435 6175 5645;

l= 2750 2860 2335 2120

1205 1600 3050 2300

1975 1670 2710 2980;

y= 0.005 0.02 0.07;

t= 1 3 7;

ENDDATA

[Objective_Function] MAX=@SUM(Return(i,j): x(i,j)*y(i,j))

@FOR(Month(1): m(1)-y(1,j)=l(1))

@FOR(Month(i): m(i)-y(i,j)+y(1,j)=l(i))

I do not know how to continue

view the problem from the attachment ,thanks