If the difference between compound interest (interest compounded yearly)and simple interest on a sum for 2 years at 10% p.a. is Rs.150 then sum is  Choose the correct choice from the following answers
A) Rs.12,000 B) Rs.15,000 C) Rs.13,000 D) Rs.10,000 E) Rs.14,000
compund interest = p[1+r/100]^t-p   CI = p[21/100]   simple interest = ptr/100   SI = p[20/100]   difference p[21/100]-p[20/100] = 150   p=15,000   ANSWER:Rs.15,000
<result>B</result>
If the difference between compound interest (interest compounded yearly)and simple interest on a sum for 2 years at 10% p.a. is Rs.150 then sum is