In systematic experimentation, one can use spread sheet and in
a finite number of steps, the solution will be discovered quite
fast (use of ICT is not essential but it facilitates calculations).
If we take into account conditions of the context we realize
that the number on the odometer is 24942. Having driven on
the motorways for only two hours, the figure in the position of
tens of thousands cannot change. Then it is obvious, that also
the figure in the position of units cannot change. Therefore the
number of steps needed to find the solution decreases. In Table
3, the digit in the place of hundreds regularly increases by 1 and
the other two digits are changed correspondingly is such a way
that the number remains symmetrical.