the question is in the description

Question

 firefighter is standing in front of the 24 step ladder every minute he climbs four steps and then the next minute he climbs down three steps if he starts at 9 o'clock what time will he first step on the top rung of the ladder

Answer 1

The fireman first steps on the top rung when he takes the four steps from rung 20.

He reaches rung 20 after 40 minutes. The next minute he reaches the 24th rung.

 

9:41