Question

an elevator descends into mine shaft at the rate of 5m per minutes . If the desending starts from 20m above the ground level how long will it take to reach 240m??????

Answer 1

It will take 52 minutes. It can be proven because

240+20 = 260. 260/5 meter per minute = 52. Therefore, the elevatir will take 52 minutes to reach 240 meter from 20 meter.

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