Question

calculate the amount and the compound interest on 8000 for one year at 10% per annum compound half yearly​

Answer 1

Answer:

CI = p(1+R/100)raised to power n -p

=8000(1+5/100)raised to power 2 - 8000

By calculating we found 820.

Therefore interest is 820.

Step-by-step explanation:

There are two half years in a year and therefore we take n= 2 half year.

Rate is divided by two for the same reason.

Answer 2

Step-by-step explanation:

Amount compounded half yearly-

p=8000

r=10% =10/2=5%

t=1year=1×2=2 half years

Amount = p×(1+r/100)^n

= 8000×(1+5/100)^2

=8000×(105/100)^2

=8000×(21/20)^2

=8000×21/20×21/20

=20×21×21

=20×441

=8820

C.I.=Amount -principle

=(8820-8000)

=rp.820.

Hope it helps u❤❤