Southern Van Rental has accumulated extra vans at three of its van hire depots, as shown

in Table $4$:

Hire Depot Extra Vans

$1.$ Bristol $70$

$2.$ London $115$

$3.$ Swansea $60$

Total $245$

Table $4$

The firm also has shortages of vans at four other depots, as shown in Table $5$:

Hire Depot Van

shortage

A$.$ Newport $80$

B$.$ Swindon $50$