Answer:it takes the train 8 minutes to get completely out of the tunnel
Step-by-step explanation:
A train that is 1 mile long starts through tunnel that is also 1 mile long. This means that the distance travelled by the train in entering the tunnel completely would be 1 mile. The distance travelled by the train in moving out of the tunnel completely would be 1 mile
Therefore total distance covered by the train in entering and coming out of the tunnel completely would be
1 + 1 = 2 miles
The train is traveling 15 miles per hour, therefore, the time it will take to travel 2 miles would be 2/15 hours.
Converting to minutes, it becomes
2/15 × 60 = 8 minutes
