A line of 24 children walk single file down the 54-meter hallway of their school at a speed of 20 meter/min. If each child takes up 1/4 meter of space in line, how long does it take for all of them to traverse the full length of the hallway?  Choices:  A) 1 min  B) 2 min  C) 3 min  D) 4 min  E) 5 min
3 min   3 min   d = 24 * 1/4 m + 54 m = 60 m   T = 60 meters / 20 meters/min = 3 min
<result>C</result>
A line of 24 children walk single file down the 54-meter hallway of their school at a speed of 20 meter/min. If each child takes up 1/4 meter of space in line, how long does it take for all of them to traverse the full length of the hallway?