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Tag Archives: Puzzle
David Brode
David Brode is a financial modeler in Boulder, Colorado. An avid puzzle solver, he found this blog while searching for puzzles online. He was intrigued by the puzzles and was curious to see a kindred spirit in Colorado. David called … Continue reading
Puzzle #7: The Mysterious Islands
Many years ago, a large jetliner crashed into the ocean. No one could ever find the plane or any of its passengers or crew. The outside world did not know that there were many survivors. They made their way to … Continue reading
Puzzle #6: Treasury Debt
Last week was historic for U.S. Treasury debt. The yield on the 10year Treasury dipped below 1.44% to its lowest level ever, and the total debt held by the public* rose to $11,006,251,094,374.26. Some might argue that $11 trillion in public … Continue reading
Posted in Bonds, Economics, Fun, Math
Tagged Bond Math Puzzle, Finance Math Puzzle, Financial Math, Puzzle, Treasury Debt
8 Comments
Puzzle #5 (Answer): Leaping to Conclusions
Puzzle #5: A Royal Mystery posed the following question: Gregory was born on a Monday in New York City. His father sent out Western Union telegrams to announce the birth. The family later moved to London. On his seventh birthday, … Continue reading
Puzzle #5: A Royal Mystery
Gregory was born on a Monday in New York City. His father sent out Western Union telegrams to announce the birth. The family later moved to London. On his seventh birthday, which was also a Monday, the boy saw the … Continue reading
Puzzle #4: Bond Pricing
Here’s another puzzle I’ve used to teach bond math. It’s not hard, but it requires some understanding of bond concepts that I will explain as we go (I beg the patience of bond mavens). Suppose you are the financial advisor … Continue reading
Posted in Bonds, Fun, Math, Puzzles
Tagged Bond Math Puzzle, Callable Premium Bonds, Finance Math Puzzle, Financial Math, Math, Price to Call, Price to Maturity, Puzzle, Puzzle #4, Yield to Maturity
12 Comments
Puzzle #3: A Better Answer
Puzzle #3 asked for the weighted average life (“WAL”) of the principal payments for a 30year mortgage that is cut short by a balloon payment at 15 years. The following information was provided: $100,000 Principal; 5% Interest Rate; $536.82 Level … Continue reading
Posted in Fun, Math, Puzzles
Tagged Average Life Formula, Cool Graphs, Finance Math Puzzle, Financial Math, Math, Puzzle, Puzzle #3, Weighted Average Life
5 Comments