Question

An elevator descends into a mine shaft at the rateof 6m/min if the descent starts from 20m above the ground level how long will it take to reach _370m

Answer 1

Answer:

The rate of 6m/min means that, in every minute, it goes down by 6m

We have 20 above the ground and 370 m below the ground

Note:

-370 m, means it is 370 m below the ground

Total distance = 20 + 370

                      = 390 m

Time taken = 390/6

                   = 65 minutes OR 1 hour 5 minutes

Answer 2

Answer
The rate of 6m/min means that, in every minute, it goes down by 6m

We have 20 above the ground and 370 m below the ground

Note:

-370 m, means it is 370 m below the ground

Total distance = 20 + 370

                      = 390 m

Time taken = 390/6

                 = 65 minutes

OR

1 hour 5 minutes