An elevator descends into a mine shaft at the rate of 6 m/min. If descent starts from 10 m above ground level, how long...

Type: MCQ • Marks: 1

An elevator descends into a mine shaft at the rate of 6 m/min. If descent starts from 10 m above ground level, how long will it take to reach -350 m?

A. 55 minutes

B. 65 minutes

C. 60 minutes

D. 50 minutes

Explanation

Total distance to cover = 10 - (-350) = 360 m. Time = 360 ÷ 6 = 60 minutes.

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Class 7th Ganita Prakash 2

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