1000 x (1.025)8 which is $1218.40.
$5,249.54
After 5 years, 20000 at 7% per annum compounded semiannually will be 20000*(1 + 0.5*7/100)2*5 = 20000*(1.035)10 = 28211.98
You should have 5976.51 provided the fractional units of interest earned are also rolled into the capital.
year
If 1500 dollars is invested at an interest rate of 3.5 percent per year compounded continuously, after 3 years it's worth $1666.07, after 6 years it's $1850.52, and after 18 years it's worth $2816.42.
13.96%
It is 1.135^2 - 1 = 28.8%
$5,249.54
It is 20000*(1.07)^60 = 1158928.54
1200
It will be 726.
5000 x (1.03)10 = $6719.58
$1480.24
After 5 years, 20000 at 7% per annum compounded semiannually will be 20000*(1 + 0.5*7/100)2*5 = 20000*(1.035)10 = 28211.98
Semiannually over two years is equivalent to 4 periods. If the interest is 12% every 6 months, then the amount of interest is It is 8000*[(1.12)4 -1] =4588.15
800 x (1.04)6 ie Rs1012.26
If every six months the capital earn 10% interest which is compounded, at the end of 5 years, the interest will be 31875. If the annual interest rate is 10%, it makes no difference how often it is compounded. The six monthly interest rate is adjusted - to 4.88% rather than 5% - so that the total interest for a year is 10%.