## Task 1 - 070611

A certain large city's tram station has a total of 83 trams. Of these, exactly 46 are trailers. At a certain point in time, a total of 8 motor cars, each with two trailers, and 23 motor cars, each with one trailer, are in service.

What is the number of all motor cars and trailers that are not in service at this time?
Let the number of trailers be $a$, and the number of motor cars be $t$. According to the problem statement, $a+t=46+t=83$. Therefore, there are 37 motor cars.

At the specific time, $8+23=31$ motor cars and $16+23=39$ trailers are in use. Consequently, 7 trailers and 6 motor cars are not in use.