VIEW THE MOBILE VERSION of Informational Site Network Informational
Home Top Rated Puzzles Most Viewed Puzzles All Puzzle Questions Random Puzzle Question Search

The Perplexed Plumber


When I paid a visit to Peckham recently I found everybody asking, "What has happened to Sam Solders, the plumber?" He seemed to be in a bad way, and his wife was seriously anxious about the state of his mind. As he had fitted up a hot-water apparatus for me some years ago which did not lead to an explosion for at least three months (and then only damaged the complexion of one of the cook's followers), I had considerable regard for him.

"There he is," said Mrs. Solders, when I called to inquire. "That's how he's been for three weeks. He hardly eats anything, and takes no rest, whilst his business is so neglected that I don't know what is going to happen to me and the five children. All day long—and night too—there he is, figuring and figuring, and tearing his hair like a mad thing. It's worrying me into an early grave."

I persuaded Mrs. Solders to explain matters to me. It seems that he had received an order from a customer to make two rectangular zinc cisterns, one with a top and the other without a top. Each was to hold exactly 1,000 cubic feet of water when filled to the brim. The price was to be a certain amount per cistern, including cost of labour. Now Mr. Solders is a thrifty man, so he naturally desired to make the two cisterns of such dimensions that the smallest possible quantity of metal should be required. This was the little question that was so worrying him.

Can my ingenious readers find the dimensions of the most economical cistern with a top, and also the exact proportions of such a cistern without a top, each to hold 1,000 cubic feet of water? By "economical" is meant the method that requires the smallest possible quantity of metal. No margin need be allowed for what ladies would call "turnings." I shall show how I helped Mr. Solders out of his dilemma. He says: "That little wrinkle you gave me would be useful to others in my trade."

Read Answer

Next: The Nelson Column

Previous: The Fifteen Orchards

Add to Informational Site Network

Random Questions

The Card Frame Puzzle.
Problems Concerning Games.
The Victoria Cross Puzzle.
Moving Counter Problem
The Dice Numbers.
Money Puzzles
The Game Of Bandy-ball
A Problem In Squares.
Money Puzzles
The Nun's Puzzle
The Eight Engines.
Moving Counter Problem
The Sixteen Sheep.
Combination and Group Problems
The Scientific Skater.
The Guarded Chessboard
The Antiquary's Chain.
Combination and Group Problems
The Costermonger's Puzzle.
Money Puzzles
The Rook's Tour.
The Guarded Chessboard
The Passenger's Fare.
Money Puzzles
Catching The Mice.
Moving Counter Problem
The Glass Balls.
Combination and Group Problems