From the equation (1), we know the oil tank truck can
transport 33.4 barrels of gasoline in a week.
For the third transportation way, assuming:
It spends two minutes to take out a barrel of
gasoline from the oil depot.
It spends five minutes to pour a barrel of gasoline to
the oil tank truck.
It spends one day for a barrel of gasoline to flow to
the gas station.
It spends five minutes to unload a barrel of gasoline
from the oil tank truck.
It spends two minutes to pour a barrel of gasoline
into the gas station.
How much gasoline can be transported in a week? It can
be calculated by