Asked by bajwa
For an investment to double in value during a 12-year period,
a. What annually compounded rate of return must it earn? (Round your answer to two decimal places.)
Annually compounded rate of return %
b. What monthly compounded rate of return must it earn? (Round your answer to two decimal places.)
a. What annually compounded rate of return must it earn? (Round your answer to two decimal places.)
Annually compounded rate of return %
b. What monthly compounded rate of return must it earn? (Round your answer to two decimal places.)
Answers
Answered by
Henry
a. P = Po(1+r)^12 = 2Po
Divide both sides by Po:
(1+r)^12 = 2
Take Log of both sides:
12*Log(1+r) = Log 2
Divide both sides by 12:
Log(1+r) = Log 2/12 = 0.02509
1+r = 10^(0.02509) = 1.0595
r = 0.0595 = 5.95%
b. 12Comp./yr. * 12yrs. = 144 Compounding periods.
P = Po(1+r)^144 = 2Po
r = Monthly % rate expressed as a decimal.
Solve for r.
Use same procedure as part a.
Divide both sides by Po:
(1+r)^12 = 2
Take Log of both sides:
12*Log(1+r) = Log 2
Divide both sides by 12:
Log(1+r) = Log 2/12 = 0.02509
1+r = 10^(0.02509) = 1.0595
r = 0.0595 = 5.95%
b. 12Comp./yr. * 12yrs. = 144 Compounding periods.
P = Po(1+r)^144 = 2Po
r = Monthly % rate expressed as a decimal.
Solve for r.
Use same procedure as part a.
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