The compound interest earned on investing Rs. 'Y' for 2 years at compound interest of 12% p.a. compounded annually is Rs. 1272. The interest earned on investing Rs. 12800 for 3 years at simple interest 15% p.a. is
1
Rs 1.12Y
2
Rs (2Y - 4540)
3
Rs (1.1Y + 260)
4
Rs (0.8Y + 1660)
5
Rs (Y + 860)