Clara's utility function is U(X, Y)= (X + 2)(Y + 1).If Clara's marginal rate of substitution is -2 and she is consuming 10 units of good X, how many units of good Y is she consuming?
A)2
B)24
C)12
D)23
E)5

Question

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The Answer of Clara's utility function is U(X, Y)= (X + 2)(Y + 1).If Clara's marginal rate of substitution is -2 and she is consuming 10 units of good X, how many units of good Y is she consuming?
A)2
B)24
C)12
D)23
E)5

Clara's Utility Function Is U(X, Y)= (X + 2)(Y