Task: Question Answering
Input (English): Problem: we invested a total of $ 1,000 . we invested one part of the money at 3 % and the rest of the money at 6 % . the total investment with interest at the end of the year was $ 1 , 052.50 . how much money did we invest at 3 % ? 
Options: a ) $ 160 , b ) $ 190 , c ) $ 220 , d ) $ 250 , e ) $ 280
Output (English): d