I am bit confused about following question asked in previous year exam which is as follows :
Rakesh purchased a horse for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If the prevailing rate of interest be 10% per annum, then Rakesh has a net gain of:
A. 0%
B. 5%
C. 7.5%
D. 10%
The answer given is 0% and I don't understand how. I am also confused about the terminology used like 'credit of 2 years' and 'prevailing rate of interest'.
Any help will be useful.
Thanks.