Answer:
7
Explanation:
The shelf has got 5 rows and the total number of cars is 35. We have to find the amount of car in each row.
Since there is no any other condition for the number of cars in rows (for example, it could be given that the number of cars in rows is different from each-other) we have to find the exact and the same number. Also, we bear in mind that the number of the cars has to be a full number.
The solution is 35 : 5 = 7 cars