Question

An elevator goes up in a multi storey building at the rate of 6 m/min. If it starts from 20 m below the ground level, how long will it take to reach 320 m ? ​

Answer 1

Answer:

56 minute 40 seconds

Explanation:

unit rate: 6 meters per minute

The elevator starts from 20 m below ground level.

So, in total have to cover distance = 20 + 320 = 340 meter

Time taken = distance/speed

                   = 340/6

                   = 56.67 minute

                   ≈ 56 minute 40 seconds