What is the rate percent when the simple interest on Rs.800 amount to Rs.128 in 4 Years?
Choices:
A) 5%	B) 3%	C) 4%	D) 9%	E) 1%
128 = (800*4*R)/100   R = 4%   Answer: 4%
<result>C</result>
What is the rate percent when the simple interest on Rs.800 amount to Rs.128 in 4 Years?