prompt: Darlene's car gets 20 miles/gallon. Martha's car gets half as many miles per gallon as Darlene’s car. How many gallons does Martha’s car require to make a 300-mile trip?
messages.content: Darlene's car gets 20 miles/gallon. Martha's car gets half as many miles per gallon as Darlene’s car. How many gallons does Martha’s car require to make a 300-mile trip?
messages.role: user
messages.content: Martha’s car gets 20/2 = <<20/2=10>>10 miles per gallon.
  Total gallons Martha’s car requires is 300/10 = <<300/10=30>>30 gallons.
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messages.role: assistant