Wharton’s official 2010
Mathematics Self-Assessment Test®:
Let-it-Ride Lucas invests $100,000 in a bank. I f he requires his investment to grow
to $140,000 after six years, what nominal annual rate, compounded continuously,
must he receive? What interest rate would Lucas have to receive if the money were
compounded annually?
And here is an actual GMAT problem:
Leona bought a 1-year, $10,000 certificate of deposit that paid interest at an annual
rate of 8 percent compounded semiannually. What was the total amount of interest
paid on this certificate at maturity?
While the problems are not identical, both require the compound interest formula,
namely P^ = PQ(1 + r)'. There are many examples where GMAT know-how overlaps
with business school concepts, so readers might be wise to resist burning their GMAT
books after their exam is complete.
MANHATTAN
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