Rs. 12,000 is lent for one year at the rate of 15% per annum, the interest being compounded annually. If the compounding of the interest is done half-yearly, then how much more interest will be obtained at the end of the one-year period on the same initial sum?
1
Rs. 72.5
2
Rs. 82.8
3
Rs. 60.5
4
Rs. 67.5