What is the rate percent when the simple interest on Rs.800 amount to Rs.160 in 4 Years?  Choose the correct option.
A) 5 B) 6 C) 7 D) 8 E) 9
160 = (180*4*R)/100   R = 5%.5nswer: 5
<result>A</result>
What is the rate percent when the simple interest on Rs.800 amount to Rs.160 in 4 Years?