Jerome got in the elevator on the first floor of his office building. He went up 19 floors to his office. Then, Jerome took the stairwell down 3 floors for a morning meeting. After the morning meeting, he took the elevator down 7 floors for lunch in the cafeteria. Then, Jerome took the stairwell up 5 floors for an afternoon meeting. On which floor was his afternoon meeting?

Jerome's afternoon meeting was on the 14th floor.

First, let's determine Jerome's starting floor. He got in the elevator on the first floor.

Next, let's calculate the floor he reached after going up 19 floors to his office. Starting from the first floor and going up 19 floors, he would reach the 20th floor.

Afterward, Jerome took the stairwell down 3 floors for a morning meeting. Starting from the 20th floor, going down 3 floors would bring him to the 17th floor.

For his lunch in the cafeteria, Jerome took the elevator down 7 floors. Starting from the 17th floor and going down 7 floors would bring him to the 10th floor.

Finally, he took the stairwell up 5 floors for his afternoon meeting. Starting from the 10th floor and going up 5 floors would bring him to the 15th floor.

Therefore, Jerome's afternoon meeting was on the 15th floor.