Question

a passenger got on the elevator at the 10th floor and descended 15 floor to drop the passenger off in the parking garage what level is the parking garage

Answer 1

Let us think for simplicity that we got on the elevator at the second floor.

From here, if we descended 2 floors, then we would be at the ground floor.

Likewise, the passenger at the 10th floor would be at the ground floor after the elevator descended 10 floors.

According to the problem, the elevator descended 15 floors.

So, from the ground level, it descended 5 more floors.

Hence, the parking garage is 5 floors under the ground level.

Answer 2

To solve this problem you must apply the proccedure shown below:

1. You have that the passenger got the elevator at the floor number 10 and he descended 15 floors to the parking garage. Therefore, the find the level of the parking garage, you must substract the level 15 and the level 10.

`10-15=-5`

2. Therefore, if the main floor is the level 0, the parking garage is at the level -5.

The answer is: Level -5.