Answer: 1 hour and 20 mins
Explanation:
Lily has to walk 4 more miles to complete her goal and with the pace of 3m/h she will have to for 1 hour 20 mins, to complete her goal.
Distance to be covered= 4 miles Speed= 3 miles per hour
Time= Distance/Speed
Time= 4/3
Time= 1.33 hours
Time= 1 hour and 20 mins