Question

The floors of a twenty storey building is spaced 2,2 m apart.An elevator stars at 08h00 on ground level with persons A and B .They go up to floor 17 and return immediately to floor 14 where A get out.B return to ground levele where he arrived at 08h03.what is the total distance traveled by persons A and B ?2. what is the average speed attained by the elevator? 3.what time will it take for person to go from ground level to the top of the building?

Answer 1

Is this in Europe, where floor 1 is one up from the ground floor? If so,
1. A and B went up 17 then down 3, or 20 floors times 2,2 m/floor
2. Assuming zero time at each stop, then the elevator went 34 floors in 3 minutes, or 34/3 floor/min.
3. 20 floors would thus take 20/34 * 3 min