Question: It is desired to solve Prob. 6.62 for the most economical pump and cast-iron pipe system. If the pump costs $125 per horsepower delivered to

It is desired to solve Prob. 6.62 for the most economical pump and cast-iron pipe system. If the pump costs $125 per horsepower delivered to the fluid and the pipe costs $7000 per inch of diameter, what are the minimum cost and the pipe and pump size to maintain the 3 ft3/s flow rate? Make some simplifying assumptions.

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