In: Finance
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Option (b) is correct
Suppose amount invested is $1000.
We will now calculate the return for each option:
49% Total return:
$1000 * 49% = $490
Calculation of 6.9% Annual return:
Here we will use the following formula:
FV = PV * (1 + r%)n
where, FV = Future value, PV = Present value = $1000, r = rate of interest = 6.9%, n= time period = 6
now, putting theses values in the above equation, we get,
FV = $1000 * (1 + 6.9%)6
FV = $1000 * (1 + 0.069)6
FV = $1000 * (1.069)6
FV = $1000 * 1.49233467892
FV = $1492.334
Now,
Return = Future value - Present value
Return = $1492.334 - $1000 = $492.334
Calculation of 3.4% Semi Annual return:
Here we will use the following formula:
FV = PV * (1 + r%)n
where, FV = Future value, PV = Present value = $1000, r = rate of interest = 3.4% compounded semi annually, so semi rate = 3.4% / 2 = 1.7%, n= time period = 6 * 2 = 12 semi annual periods
now, putting theses values in the above equation, we get,
FV = $1000 * (1 + 1.7%)12
FV = $1000 * (1 + 0.017)12
FV = $1000 * (1.017)12
FV = $1000 * 1.22419735
FV = $1224.197
Now,
Return = Future value - Present value
Return = $1224.197 - $1000 = $224.197
Calculation of 0.55% Monthly return:
Here we will use the following formula:
FV = PV * (1 + r%)n
where, FV = Future value, PV = Present value = $1000, r = rate of interest = 0.55% compounded monthly, so monthly rate = 0.55% / 12 = 0.045833%, n= time period = 6 * 12 = 72 months
now, putting theses values in the above equation, we get,
FV = $1000 * (1 + 0.045833%)72
FV = $1000 * (1 + 0.00045833)72
FV = $1000 * (1.00045833)72
FV = $1000 * 1.03354272543
FV = $1033.542
Now,
Return = Future value - Present value
Return = $1033.542 - $1000 = $33.542
From the above, we can see that return ($492.334) given by option (b) i.e. 6.9% annual rerturn is maximum.