A barrel stores 20*2+3=<<20*2+3=43>>43 gallons

So he can store 4*43=<<4*43=172>>172 gallons

# Answer

172
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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?
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172
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?
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