conversations.from: human
conversations.value: Can you walk me through the solution of: Gentry assembled a new 24 foot round pool in her backyard.  To fill the pool with water, she used four hoses.  Two of the hoses each deliver water at a rate of 2 gallons per minute.  The other two hoses each deliver water at a rate of 3 gallons per minute.  With a volume of 15,000 gallons, how many hours will it take to fill the pool?
conversations.from: assistant
conversations.value: Each of the two hoses delivers water at a rate of 2 gallons per minute, for a combined total of 2*2=4 gallons of water per minute.
  The other two hoses each deliver water at a rate of 3 gallons per minute, for a combined total of 2*3=6 gallons of water per minute.
  Thus, all four hoses deliver a combined total of 4+6=10 gallons of water per minute.
  With a volume of 15,000 gallons, it would take 15,000/10=1500 minutes to fill the pool.
  Converting to hours, it will take 1500/60=25 hours to fill the pool.