human
James has barrels that he uses to store water. They store 3 gallons more than twice as much as a large cask. If he has 4 barrels and a cask stores 20 gallons, how much water can he store?
assistant
How many gallons does a barrel store? ** A barrel stores 20*2+3=<<20*2+3=43>>43 gallons
How many gallons can he store? ** So he can store 4*43=<<4*43=172>>172 gallons
#### 172