Mathew and Susan are both optimizing consumers in the markets for shirts and hats, where they pay $100 for a shirt and $50 for a hat. Matthew buys 4 shirts and 16 hats, while Susan buys 6 shirts and 12 hats. From this information, we can infer that that Matthew's marginal rate of substitution is ______hats per shirt , while Susan's is _____
For this question I am get 2,1 as the answer but the answer seems to be 2,2. Could someone please explain it?