Working Through the Brealey Myers Corporate Finance Problem Sets
The Brealey Myers textbook is standard reading for most undergrad finance programs, and the solution manuals are everywhere online. The problem sets cover NPV, capital budgeting, WACC, Option Pricing, and a bunch of other core topics. Most students grab the solutions to check their work or to get unstuck when a problem doesn't click after an hour of trying. Here is how to actually use them without making things worse for yourself. Start with the chapter summary before opening any solution. The concepts in Brealey Myers move fast from chapter three onward. If you skip the summary and jump straight into the problems, you will be guessing at formulas and wondering why your NPV comes out wrong. The solution manual is most useful when you already know what tool you are supposed to be reaching for. I ran into a specific issue last semester with a student working through the real options chapter. The textbook example uses a binomial model with discrete time steps, but the solution manual shows a continuous-time Black-Scholes approach for a similar problem. The numbers matched but the methodology was completely different. The workaround was to identify which model the professor actually covered in lecture and then treat the solution manual answer as a conceptual check, not a step-by-step template. If your class never did binomial trees, using that solution's framework on an exam will lose you points even if the final number looks right.
The most common mistake I see is copying the solution's answer without rebuilding the spreadsheet from scratch. Every time I have watched someone do this, they fail the next problem that changes just one variable. The habit of re-entering every formula yourself takes about twenty extra minutes per problem but it is the difference between understanding capital budgeting and recognizing patterns on a test. It also cuts down on transcription errors, which happen constantly when you are reading a PDF solution and typing numbers into Excel by hand.
Where the Solution Manual Falls Short
The official solutions assume you have a financial calculator or a clean Excel setup. They rarely show the intermediate steps for messy inputs like fractional periods in DCF calculations or adjusting WACC when the debt-to-equity ratio shifts mid-project. In practice, real problems are uglier than the textbook examples. The solutions also do not address tax shield timing differences, which matter significantly in chapters twelve and thirteen but are glossed over in the answer key. For advanced topics like the Modigliani-Miller propositions with corporate taxes, the solution manual gives you the clean textbook derivation. It does not explain what happens when bankruptcy costs are introduced or when the market is incomplete. If you are doing this material for a capstone course or a competition, you will need supplementary reading. The Ross-Westerfield-Jordan text covers the same ground with more numerical examples. Alternatively, the MIT OpenCourseWare finance materials fill in gaps that the Brealey Myers solutions leave open.
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Practical Workflow
Try the problem for at least thirty minutes before looking at the solution. Write down every assumption you make, even the ones that feel obvious. When you open the solution, compare your assumptions to theirs line by line. The disagreement points are where the learning actually happens. Most of the time your wrong answer traces back to one overlooked assumption about reinvestment rates or cash flow timing. Keep a running spreadsheet where you log each problem, the chapter concept it tests, your initial answer, the solution answer, and the delta between them. After ten problems, this log shows you which topics you consistently miss. In my experience, students tend to have blind spots around APV calculations and weighted average cost of capital adjustments. The log makes those patterns visible faster than re-reading the chapter. The solution manuals themselves are usually found on academic resource sites or through university library reserves. Some editions have errata posted by the authors that correct calculation errors in the published answers. The third errata sheet for the twelfth edition contains a correction for problem seventy-four where the salvage value was carried into the wrong year. Checking for these notes saves you from following a flawed solution path.
What to Skip
The later chapters on international corporate finance and merger valuation have solutions that are less reliable. The models used in those sections vary significantly across different professor implementations, and the answer key tends to present one arbitrary set of assumptions as if it is definitive. When you encounter problems in those chapters, cross-reference with lecture notes first. The solution manual is a secondary check at best. Also avoid using the solutions for exam prep by memorizing worked examples. Brealey Myers problem sets are designed to test your ability to set up the framework, not to reproduce a known calculation. The exams regularly change parameters in ways that make memorized answer sequences useless within thirty seconds of starting the problem. Building the setup from first principles is faster under time pressure than trying to match a problem to a solved example you half-remember.
Bottom Line
The Brealey Myers solutions are functional for checking your work and debugging specific calculation steps. They are not comprehensive tutorials. The textbook itself contains most of the theory you need, and the solutions complement it rather than replace it. Use them deliberately, track your recurring errors, and recognize the sections where the manual is thin on detail. That approach typically cuts problem-solving time in half after the first few weeks of consistent use.
