Task 2 - 200512 To transport a certain amount of gravel, a truck with a 5 t loading capacity would have had to make exactly 105 fully loaded trips. After 35 of these trips, it was replaced by another truck with a 7 t loading capacity.

Determine how many fully loaded trips this second truck still has to make to transport the remaining amount of gravel!
Due to $105 \cdot 5=525$, a total of 525 t of gravel needed to be transported.

Due to $35 \cdot 5=175$, the first truck had transported exactly $175 \mathrm{t}$ of gravel by the time it was replaced. Therefore, because $525-175=350$, exactly 350 t of gravel still needed to be transported. Due to $350: 7=50$, this amount could be transported by the second truck with exactly 50 fully loaded trips.