Please solve this for me step by step (no excel, no financial cal. show algebra)? Thank you.
a. interest earned for first 6 months at 3% = 100000*.03*0.5 = 1,500
now you have = 100,000 +1,500 = 101,500
interest earned on 101,500 for 6 months at 4% = 101,500*.04*0.5 = 2,030
final proceeds after 1 year = 101,500 + 2,030 = $103,530
b. Compounding formula:
here A = $103,530
P = $100,000
n = 2 (two semi-annual in one year)
103530 = 100000(1+r/2)2
(1+r/2)2 = 103530/100000 = 1.0353
1+r/2 = 1.0175
r/2 = 0.0175
r = 0.035
therefore at 3.5% per annum semi - annual compounding we get same proceeds as part one.
c. As already seen in part a) and b) when the one year rate in part b) is 3.5% and initial 6-month rate be in a) is 3% in order to get same proceeds the later rate in part a should be 4%
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