HARD MATH QUESTION - HELP!!!?

Angela and Barry share a piece of land. The ratio of the area of Angela's portion to the area of Barry's portion is 3:2. They each grow corn and peas on their piece of land. The entire piece of land is covered by corn and peas in the ratio 7:3. On Angela's portion of land, the ratio of corn to peas is 4:1. What is the ratio of corn to peas for Barry's portion?