Calculate the total amount and compound interest on RS 8,000 for a year at the rate of 9% per annum compounded half yearly.

See below in bold.

Step-by-step explanation:

Total = A (1 + r/n) ^nt where A = initial amount, t = number of years, r = the rate (as a decimal fraction) and n = number of payments a year. So:

Total after 1 year = 8000 (1 + 0.09/2) ^ 1*2

= RS 8736.20.

Compound interest = RS 736.20