Question

There are three departments A, B and C. department B produces 2 unit from 1 unit of .A while C produces 2 unit form 1 unit of B. A and B department sold half of there product to next department out side if C sold 12000units to outside then what is the total production of department.

Answer 1

If A has a units then B produces 2a units. C produces 2 units from each unit of B, so C produces 4a units.

Combined output from A and B=3a units.

C sells 12000 units so 4a=12000, a=3000. Combined output from A and B=3a=9000 units, but they only sell half of what they produce=4500 units. In all, the three departments produce 12000+4500=16500 units.