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?
A barrel stores 20*2+3=<<20*2+3=43>>43 gallons
So he can store 4*43=<<4*43=172>>172 gallons
#### 172