Question

An underground subway elevator descends 12% of the total depth every minute. The total depth of the elevator is 75 meters below the ground. How many meters below the ground is the elevator after 2 minutes?

Answer 1

75/100 = 0.75

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12 x 0.75 = 9

* The mine elevator travels a

distance of 9 metres per minute.

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After 2 minutes, the mine elevator

would've travelled 18 metres,

therefore your answer is:

18 metres