A family lives in a large tower apartment building, 10 floors high. Every day their son takes the elevator from the family’s apartment on the 10th floor to the ground floor and goes to school. When he returns in the afternoon, he uses the elevator to get to the fifth floor, and then uses the stairs for the remaining five floors. Why?

he’s a child so she can’t reach the elevator buttons above 5

Step-by-step explanation:

Step-by-step explanation:

Considering that the question is a fun riddle, I will give a suitable fun answer.

The question says that the son goes to school, so we can assume that the boy is a young child. So, he is probably short.

So, while getting down the stairs, it is easy for him to press the button in the elevator to reach the ground floor as the button for ground floor is the on the bottom of the switch panel.

However, since he is short he cannot reach the button for the 10th floor after returning from school. He can only reach up to the button for the 5th floor. So, he travels up to the 5th floor by the elevator and from there he takes the stairs to reach the 10th floor.

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cut 138 centimeters off

step-by-step explanation:

250-112 = 138