IKMC 2027 - Grades 3-4 - Self-study SET 2 - Thematic Batch 3 Question 5

Borya the rabbit loves cabbages and carrots. In one day, he can eat 9 carrots, or 2 cabbages, or 1 cabbage together with 4 carrots. In one week, Borya ate 30 carrots. How many cabbages did he eat that week?