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QUESTION
An area measuring 400 ft by 120 ft is engulfed in fire. During a single pass over the fire, a water bearing helicopter drops sufficient water to...
An area measuring 400 ft by 120 ft is engulfed in fire. During a single pass over the fire, a water bearing helicopter drops sufficient water to extinguish a burning area 20 m by 20 m. Assuming the fire remains confined to the original area, how many passes must four helicopters make to extinguish the fire?
