A sum of money at simple interest amounts to Rs. 830 in 3 years and to Rs. 854 in 4 years. The sum is: Pick one.
A) 647  B) 698  C) 758  D) 847  E) 976
S.I. for 1 year = Rs. (854 - 830) = Rs. 24.   S.I. for 3 years = Rs.(24 x 3) = Rs. 72.   Principal = Rs. (830 - 72) = Rs. 758.   Answer:758
<result>C</result>
A sum of money at simple interest amounts to Rs. 830 in 3 years and to Rs. 854 in 4 years. The sum is: