An underground mine elevator reaches a total depth of 99 meters. it descends 17% of the total distance every minute.
how many meters below the ground is the elevator after 3 minutes?
–67.32 meters
–33.66 meters
–16.83 meters
–50.49 meters

Total distance of the elevator = 99m

Descending distance every minute = 99*17/100
                                                        = 16.83 m
Descending distance in 3 minutes  = (16.83*3)
                                                        = 50.49 m

So the answer is 50.49 m