What amount does Kiran get if he invests Rs. 18000 at 15% p.a. simple interest for four years?  Choose the correct choice from the following options.
A) 22777  B) 28877  C) 26888  D) 28800  E) 67881
Simple interest = (18000 * 4 * 15)/100 = Rs. 10800   Amount = P + I = 18000 + 10800 = Rs. 28800   Answer:28800
<result>D</result>
What amount does Kiran get if he invests Rs. 18000 at 15% p.a. simple interest for four years?