I am trying to solve following question with solver, however I can’t figure out how to build the model. Any help is appreciated.
I have 8 camions and each camion’s capacity is How8 ton. I want to transport 2500 tons of wheat from point A to 3 silos. Silos capacity and required travel time are as follows:
Silo 1) 30% of total load should go to this silo with travel time of 3.5 hours
Silo 2) 50% of total load should go to this silo with travel time of 2.5 hours
Silo 3) 20% of total load should go to this silo with travel time of 2 hours.
Totally I have 20 hours to do the job.
I have made following model but it is not correct and solver can’t find a solution.
Specially I don’t know how to impose travel time limitation (row number 6 in the table)? Without travel time limitation, there is a result. Is it possible that the question is wrong with no answer?
Numbers I entered the table are for building the model and are not answer of the question.
I have 8 camions and each camion’s capacity is How8 ton. I want to transport 2500 tons of wheat from point A to 3 silos. Silos capacity and required travel time are as follows:
Silo 1) 30% of total load should go to this silo with travel time of 3.5 hours
Silo 2) 50% of total load should go to this silo with travel time of 2.5 hours
Silo 3) 20% of total load should go to this silo with travel time of 2 hours.
Totally I have 20 hours to do the job.
I have made following model but it is not correct and solver can’t find a solution.
Specially I don’t know how to impose travel time limitation (row number 6 in the table)? Without travel time limitation, there is a result. Is it possible that the question is wrong with no answer?
Numbers I entered the table are for building the model and are not answer of the question.
