Answer the question on the basis of the following total utility data for products L and M. Assume that the prices of L and M are $3 and $4 respectively and that the consumer's income is $18.
U of L -TU - U of M TU
1 9 1 16
2 15 2 28
2 18 3 36
4 20 4 40
5 21 5 42
Refer to the data. What level of total utility does the rational consumer realize in equilibrium?