In the diagram above, the marginal rate of substitution of X for Y, for a movement from S to T is
- 13:3
- 1:5
- 18:4
-
5:1
The correct answer is: D
Explanation
To produce 18 units of Y, at point S, 3 units of X was produced at the same point S. A movement along the production chart from point S to T, the firm gave up 5 units of Y to produce 4 units of X. This means that the firm gave up 5 units of product Y to produce 1 additional unit of X.
The ratio of substitution is 5:1