Academic journal article ABA Banking Journal

Sleight of Mind

Academic journal article ABA Banking Journal

Sleight of Mind

Article excerpt

The first three correct responses to our "Down on the Farm" puzzle, were submitted by Thomas Mullin, trust officer, First National Bank and Trust Co. of Newtown; Mike McBurnett, senior manager, customer information management, RBC Centura Bank, Rocky Mount, NC; and Thomas Swann, consultant, CC Pace, Falls Church, Va.

The solution to this teaser was arrived as follows: If the widths of the three farms are A, B, and C, we have A (A + 8) = B (B + 28) = C (C + 34). The equation A (A + 8) = B (B + 28) has solutions A = 8, B = 4 and A = 40, B = 32. Only the latter satisfies the third equation, yielding the value C = 30. The farms are, therefore, 40 x 48, 32 x 60, and 30 x 64, all containing 1920 sq. miles.

Scott Tewksbury, president, Heartland State Bank, Edgeley, N.D., commented:

"I calculate the answer to be 1920 square miles or 1,228,800 acres. This would have been a lot easier if I could have remembered all my old algebra classes. …

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