Vincent operates a scenic tour business in Boston. He has one bus which can fit 50 people per tour and each tour lasts 2 hours. His total cost of operating one tour is fixed at $450. Vincent’s cost is not reduced if he runs a tour with a partially full bus. While his cost is the same for all tours, Vincent charges each passenger his/her willingness to pay (reservation value): adults $18 per trip, children $10 per trip, and senior citizens $12 per trip. At those rates, on a typical day Vincent’s demand is:

There is some information missing, and when I looked for it I found similar questions but the demand was already given and the question was about Vincent's total daily income.

Passenger                  Price                  Daily demand

Adults                          $18                        70

Children                      $10                        25

Senior citizens            $12                        55

total                                                           150

total revenue per day = ($18 x 70) + ($10 x 25) + ($12 x 55) = $1,260 + $250 + $660 = $2,170

total operating costs per day = (150 / 50) x $450 = $1,350

operating income per day = $2,170 - $1,350 = $820

i'ts proportional. if the inflation rate is 12% for example, the cpi will be 12% less.

hope it ,

bioteacher101

since the options are not listed, when you are working on your budget you should also add water, tv, internet, miscellaneous and your 'fun' money for in your budget. when budgeting, you need to allow for fun money, and mis/accidental money so that you stick to the budget and not go crazy because you feel strapped to the budget.