Consider the problem as in part $(1),$ but now assume that business callers are willing

to pay up to $65$ cents for night calls. $($Everything else remains the same$).$ What should

SMET charge for day calls and for night calls to maximize profits now? Calculate the

profits also. The WTP $($in cents$/$min$)$ is summarized in the table below: $(5$ points$)$

Day Night

Bus $12065$

Personal $8560$