The following sketch shows the pipelines carrying material from one location to another. Each location has a demand for material. The demand at Vaishali is $400,$ at Jyotishmati is $400,$ at Panchal is $700,$ and at Vidisha is $200.$ Each arrow indicates the direction of material flow through the pipeline. The flow from Vaishali to Jyotishmati is $300.$ The quantity of material flow is such that the demands at all these locations are exactly met. The capacity of each pipeline is $1000.$
The quantity moved from Avanti to Vidisha is
- $200$
- $800$
- $700$
- $1000$