A certain sum of money at simple interest amounted Rs.870 in 10 years at 3% per annum, find the sum?  Options: A) 665.23 B) 666.23 C) 667.23 D) 668.23 E) 669.23
870 = P [1 + (10*3)/100]   P = 669.23   Answer: 669.23
<result>E</result>
A certain sum of money at simple interest amounted Rs.870 in 10 years at 3% per annum, find the sum?