A certain sum of money at simple interest amounted Rs.698 in 7 years at 5% per annum, find the sum?  Choose the correct choice from the following.
A) 338 B) 277 C) 517 D) 678 E) 261
698 = P [1 + (7*5)/100]   P = 517   Answer:517
<result>C</result>
A certain sum of money at simple interest amounted Rs.698 in 7 years at 5% per annum, find the sum?