Academic journal article ABA Banking Journal

Sleight of Mind

Academic journal article ABA Banking Journal

Sleight of Mind

Article excerpt

March's puzzle was proof that bankers know how to make a girdle fit--around the earth, that is. First correct response came from Stephen Hafer, vice-president, Northumberland National Bank, Penn.; second from Richard M. Wright, senior vice-president, Downingtown National Bank, Downingtown, Pa., and third from Marty Lawrence, compliance officer, AmSouth, Birmingham, Ala.

We are quoting the solution submitted by Richard Wright, which is clear and concise: "The distance would be a little less than one yard. It doesn't matter the size of the earth. The new distance would be the increase in radius (r) as a result of a change in the circumference (c) of six yards, c = 2 x pi x r. So if c increased by six yards or 18 feet, you would simply divide 18 feet by 2 pi r (6.2832). This would result in a distance of 2.8648 feet from the original girdle."

Observations from our puzzlers:

Manuel Arevado, Wachovia: "Thanks for the Sleight of Mind ... I always look for that section first when I get the Journal and I was surprised to find my name on the last one! This encouraged me to send you my answer to the Earth's Girdle. …

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