Question

An elevator descends into a mine shaft at the rate of 8 m per minute . If the descent starts from 16 m above the ground level , how long will it take to reach -240m?​

Answer 1

From 16m to -240m, it will be in a number line :

-240               0              16

So :

-240 - 16 = -256

-256 ÷ 8 = 32 minutes    

Answer 2

Answer:

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