Subject: mathqa
Question: a farmer spent $ 35 on feed for chickens and goats . he spent 40 % money on chicken feed , which he bought at a 30 % discount off the full price , and spent the rest on goat feed , which he bought at full price . if the farmer had paid full price for both the chicken feed and the goat feed , what amount would he have spent on the chicken feed and goat feed combined ?
Option: 
A: $ 37.80
B: $ 41
C: $ 39.50
D: $ 39.20
Answer: B