Asked by kundavai.u

an elevator descends at the rate of 8m/min.if the descent starts from 5m above the ground level,how much time will it take to reach -475m ?
Answered by MathMate
Distance travelled
=8-(-475)
=483 m

Speed
= 8 m / min.

Time = Distance ÷ speed
=483÷8
=60.375 minutes
Answered by kundavai.u
if we round up we get 60min/1 hour
Answered by MathMate
If the original question has a unit of 8m/min., I prefer to give the answer in minutes. The question did not say to answer in hours, and did not say you have to round to the nearest hour.

But it is up to you.
Answered by help?
mathmate,she is right,she is trying to say that the answer , if we round up we get 1 hour.
cuz may be her mathbook's back answer is 1 hour or 60 minutes