Task: Question Answering
Input (English): Problem: what will be the compound interest on a sum of rs . 24,500 after 3 years at the rate of 12 % p . a . ? 
Options: a ) s . 9920.736 , b ) s . 10823.20 , c ) s . 10123.20 , d ) s . 10123.29 , e ) s . 10123.28
Output (English): a