<PRE><B>Question 350648</B>
A circular path has a diameter of 120 meters.
 a person average walking speed is 4 kilometers per hour
 about how many minutes will it take him to walk around the path 3 times ? 
:
Find how many meter/min at 4 km/hr
{{{((4*1000))/60}}} = 66{{{2/3}}} meters/min
:
Find the distance in meters for 3 laps around the track
{{{pi*120*3}}} = 1131 meters
:
Find how long to walk 1131 meters at 66{{{2/3}}} meters/min ( use 66.67 meters)
{{{1131/66.67}}} = 16.96 ~ 17 minutes </PRE>