Question

An elevator descends into a mine shaft at the rate of 5 m/min. If the descend starts from 15m above the ground, by how long will it take to reach 350 m deep from the ground?

Answer 1

67 minutes is your answer

Answer 2

Explanation:

First we need to do 350 - 15 since 350 is our total and we already started at 15m.

Next divide the remainder (335) by 5 because that’s how fast we are moving, the final answer is 67 minutes.